Q. In a circuit with a 12V battery and two resistors of 4Ω and 8Ω in series, what is the voltage across the 8Ω resistor?
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Solution
Using the voltage divider rule, V = (R2 / (R1 + R2)) * Vtotal = (8 / (4 + 8)) * 12 = 8V.
Correct Answer:
C
— 8V
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Q. In a circuit with a 12V battery and two resistors of 4Ω and 8Ω in series, what is the current flowing through the circuit?
A.
0.5A
B.
1A
C.
1.5A
D.
2A
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Solution
Total resistance R = R1 + R2 = 4Ω + 8Ω = 12Ω. Current I = V/R = 12V / 12Ω = 1A.
Correct Answer:
B
— 1A
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Q. In a circuit with a 15V battery and a 5Ω resistor, what is the voltage drop across the resistor? (2019)
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Solution
The voltage drop across the resistor is equal to the battery voltage, which is 15V.
Correct Answer:
C
— 15V
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Q. In a circuit with a 15V battery and three resistors (5Ω, 10Ω, and 15Ω) in parallel, what is the equivalent resistance?
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Solution
1/R_eq = 1/5 + 1/10 + 1/15 = 0.1 + 0.0667 + 0.0667 = 0.2334. Therefore, R_eq = 4.29Ω.
Correct Answer:
B
— 3Ω
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Q. In a circuit with a 15V battery and two resistors in series (5Ω and 10Ω), what is the voltage drop across the 10Ω resistor?
A.
5V
B.
10V
C.
15V
D.
20V
Show solution
Solution
Using the voltage divider rule, V2 = (R2 / (R1 + R2)) * Vtotal = (10 / (5 + 10)) * 15 = 10V.
Correct Answer:
B
— 10V
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Q. In a circuit with a 15V battery and two resistors in series (R1 = 5Ω, R2 = 10Ω), what is the voltage across R2?
A.
10V
B.
5V
C.
15V
D.
0V
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Solution
Voltage across R2 = (R2 / (R1 + R2)) * V = (10Ω / (5Ω + 10Ω)) * 15V = 10V.
Correct Answer:
A
— 10V
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Q. In a circuit with a 15V battery and two resistors of 5Ω and 10Ω in series, what is the voltage drop across the 10Ω resistor? (2022)
A.
5V
B.
10V
C.
15V
D.
0V
Show solution
Solution
The total resistance is 15Ω. The current I = V/R = 15V/15Ω = 1A. Voltage drop across 10Ω = I * R = 1A * 10Ω = 10V.
Correct Answer:
B
— 10V
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Q. In a circuit with a 20V battery and two resistors (4Ω and 8Ω) in parallel, what is the total current supplied by the battery?
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Solution
Total resistance in parallel, 1/Req = 1/R1 + 1/R2 = 1/4 + 1/8 = 3/8. Therefore, Req = 8/3Ω. Total current I = V/Req = 20V / (8/3) = 7.5A.
Correct Answer:
C
— 4A
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Q. In a circuit with a 24 V battery and a 6 ohm resistor, what is the current flowing through the resistor?
A.
2 A
B.
4 A
C.
6 A
D.
8 A
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Solution
Using Ohm's law, I = V/R = 24 V / 6 ohms = 4 A.
Correct Answer:
B
— 4 A
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Q. In a circuit with a 24 V battery and a total resistance of 6 ohms, what is the total current flowing through the circuit?
A.
2 A
B.
4 A
C.
6 A
D.
8 A
Show solution
Solution
Using Ohm's law, I = V/R = 24 V / 6 ohms = 4 A.
Correct Answer:
B
— 4 A
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Q. In a circuit with a 24V battery and a 6 ohm resistor, what is the voltage drop across the resistor?
A.
4 V
B.
12 V
C.
24 V
D.
6 V
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Solution
Using Ohm's law, V = I * R. First, find the current I = V/R = 24V / 6 ohms = 4 A. Then, V_drop = I * R = 4 A * 6 ohms = 24 V.
Correct Answer:
B
— 12 V
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Q. In a circuit with a 24V battery and a 6Ω resistor, what is the power consumed by the resistor? (2020)
A.
48W
B.
72W
C.
96W
D.
144W
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Solution
Power (P) can be calculated using P = V^2 / R. Here, P = 24V^2 / 6Ω = 96W.
Correct Answer:
B
— 72W
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Q. In a circuit with a 24V battery and a total resistance of 8 ohms, what is the total current flowing in the circuit?
A.
3 A
B.
2 A
C.
4 A
D.
6 A
Show solution
Solution
Using Ohm's law, I = V/R = 24V / 8Ω = 3 A.
Correct Answer:
C
— 4 A
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Q. In a circuit with a 24V battery and a total resistance of 8Ω, what is the power consumed by the circuit? (2023)
A.
72 W
B.
48 W
C.
36 W
D.
24 W
Show solution
Solution
Power P = V^2/R = 24^2/8 = 576/8 = 72 W.
Correct Answer:
B
— 48 W
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Q. In a circuit with a 24V battery and three resistors (R1 = 4Ω, R2 = 4Ω, R3 = 4Ω) in parallel, what is the total current supplied by the battery?
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Solution
Equivalent resistance R_eq = 1/(1/R1 + 1/R2 + 1/R3) = 1/(1/4 + 1/4 + 1/4) = 1.33Ω. Total current I = V/R_eq = 24V/1.33Ω = 18A.
Correct Answer:
D
— 6A
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Q. In a circuit with a 24V battery and three resistors in parallel (4Ω, 6Ω, and 12Ω), what is the total current supplied by the battery?
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Solution
1/R_eq = 1/4 + 1/6 + 1/12 = 1. Therefore, R_eq = 2Ω. Total current I = V/R_eq = 24V/2Ω = 12A.
Correct Answer:
C
— 4A
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Q. In a circuit with a 24V battery and three resistors in series (R1 = 2Ω, R2 = 3Ω, R3 = 5Ω), what is the voltage drop across R2?
A.
6V
B.
8V
C.
12V
D.
10V
Show solution
Solution
Total resistance R_total = R1 + R2 + R3 = 2Ω + 3Ω + 5Ω = 10Ω. Current I = V/R_total = 24V / 10Ω = 2.4A. Voltage drop across R2 = I * R2 = 2.4A * 3Ω = 7.2V.
Correct Answer:
B
— 8V
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Q. In a circuit with a 24V battery and three resistors of 2 ohms, 4 ohms, and 6 ohms in series, what is the total current flowing through the circuit?
A.
2 A
B.
3 A
C.
4 A
D.
1 A
Show solution
Solution
Total resistance R = 2 + 4 + 6 = 12 ohms. Using Ohm's law, I = V/R = 24V / 12 ohms = 2 A.
Correct Answer:
B
— 3 A
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Q. In a circuit with a 24V battery and three resistors of 4Ω, 4Ω, and 8Ω in series, what is the voltage drop across the 8Ω resistor?
A.
8V
B.
12V
C.
16V
D.
24V
Show solution
Solution
Total resistance R = 4Ω + 4Ω + 8Ω = 16Ω. Current I = V/R = 24V/16Ω = 1.5A. Voltage drop across 8Ω = I * R = 1.5A * 8Ω = 12V.
Correct Answer:
B
— 12V
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Q. In a circuit with a 24V battery and two 12 ohm resistors in series, what is the current flowing through the circuit?
A.
1 A
B.
2 A
C.
3 A
D.
4 A
Show solution
Solution
Total resistance R_total = 12 + 12 = 24 ohms. Current I = V/R_total = 24V / 24Ω = 1 A.
Correct Answer:
B
— 2 A
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Q. In a circuit with a 24V battery and two 12Ω resistors in parallel, what is the total current supplied by the battery?
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Solution
Total resistance R = 1/(1/12 + 1/12) = 6Ω; Total current I = V/R = 24V / 6Ω = 4A.
Correct Answer:
D
— 4A
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Q. In a circuit with a 24V battery and two 12Ω resistors in series, what is the current flowing through the circuit?
Show solution
Solution
Total resistance R_total = 12Ω + 12Ω = 24Ω. Current I = V/R_total = 24V / 24Ω = 1A.
Correct Answer:
B
— 2A
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Q. In a circuit with a 24V battery and two 8Ω resistors in series, what is the total current? (2022)
Show solution
Solution
Total resistance R = 8Ω + 8Ω = 16Ω. Current I = V/R = 24V / 16Ω = 1.5A.
Correct Answer:
B
— 2A
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Q. In a circuit with a 24V battery and two resistors in series (4Ω and 8Ω), what is the voltage across the 8Ω resistor?
A.
8V
B.
12V
C.
16V
D.
20V
Show solution
Solution
Voltage across 8Ω resistor = (R2 / (R1 + R2)) * Vtotal = (8 / (4 + 8)) * 24 = 16V.
Correct Answer:
B
— 12V
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Q. In a circuit with a 24V battery and two resistors in series (6Ω and 3Ω), what is the voltage across the 3Ω resistor?
A.
8V
B.
12V
C.
16V
D.
4V
Show solution
Solution
Total resistance = 6Ω + 3Ω = 9Ω. Current I = V / R = 24V / 9Ω = 2.67A. Voltage across 3Ω = I * R = 2.67A * 3Ω = 8V.
Correct Answer:
A
— 8V
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Q. In a circuit with a 24V battery and two resistors in series (R1 = 6Ω, R2 = 12Ω), what is the voltage drop across R2?
A.
12V
B.
18V
C.
6V
D.
8V
Show solution
Solution
Voltage drop across R2 = V_R2 = (R2 / (R1 + R2)) * V_total = (12Ω / (6Ω + 12Ω)) * 24V = 12V.
Correct Answer:
A
— 12V
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Q. In a circuit with a 24V battery and two resistors in series (R1 = 8Ω, R2 = 16Ω), what is the current flowing through the circuit?
Show solution
Solution
Total resistance R_total = R1 + R2 = 8Ω + 16Ω = 24Ω. The current is I = V/R_total = 24V / 24Ω = 1A.
Correct Answer:
B
— 2A
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Q. In a circuit with a 24V battery and two resistors in series (R1 = 8Ω, R2 = 16Ω), what is the voltage across R2?
A.
16V
B.
8V
C.
12V
D.
4V
Show solution
Solution
Using voltage division, V_R2 = V_total * (R2 / (R1 + R2)) = 24V * (16Ω / (8Ω + 16Ω)) = 16V.
Correct Answer:
A
— 16V
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Q. In a circuit with a 24V battery and two resistors of 4Ω and 8Ω in parallel, what is the total current supplied by the battery? (2022)
Show solution
Solution
First, find the equivalent resistance: 1/R_eq = 1/4 + 1/8 = 3/8, so R_eq = 8/3Ω. Then, I = V/R_eq = 24V / (8/3)Ω = 9A.
Correct Answer:
D
— 6A
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Q. In a circuit with a 24V battery and two resistors of 4Ω and 8Ω in series, what is the voltage across the 8Ω resistor?
A.
8V
B.
12V
C.
16V
D.
20V
Show solution
Solution
Voltage across R2 = (R2 / (R1 + R2)) * V = (8 / (4 + 8)) * 24 = 16V.
Correct Answer:
B
— 12V
Learn More →
Showing 13201 to 13230 of 31669 (1056 Pages)
Major Competitive Exams MCQ & Objective Questions
Major Competitive Exams play a crucial role in shaping the academic and professional futures of students in India. These exams not only assess knowledge but also test problem-solving skills and time management. Practicing MCQs and objective questions is essential for scoring better, as they help in familiarizing students with the exam format and identifying important questions that frequently appear in tests.
What You Will Practise Here
Key concepts and theories related to major subjects
Important formulas and their applications
Definitions of critical terms and terminologies
Diagrams and illustrations to enhance understanding
Practice questions that mirror actual exam patterns
Strategies for solving objective questions efficiently
Time management techniques for competitive exams
Exam Relevance
The topics covered under Major Competitive Exams are integral to various examinations such as CBSE, State Boards, NEET, and JEE. Students can expect to encounter a mix of conceptual and application-based questions that require a solid understanding of the subjects. Common question patterns include multiple-choice questions that test both knowledge and analytical skills, making it essential to be well-prepared with practice MCQs.
Common Mistakes Students Make
Rushing through questions without reading them carefully
Overlooking the negative marking scheme in MCQs
Confusing similar concepts or terms
Neglecting to review previous years’ question papers
Failing to manage time effectively during the exam
FAQs
Question: How can I improve my performance in Major Competitive Exams?Answer: Regular practice of MCQs and understanding key concepts will significantly enhance your performance.
Question: What types of questions should I focus on for these exams?Answer: Concentrate on important Major Competitive Exams questions that frequently appear in past papers and mock tests.
Question: Are there specific strategies for tackling objective questions?Answer: Yes, practicing under timed conditions and reviewing mistakes can help develop effective strategies.
Start your journey towards success by solving practice MCQs today! Test your understanding and build confidence for your upcoming exams. Remember, consistent practice is the key to mastering Major Competitive Exams!
