JEE Main MCQ & Objective Questions
The JEE Main exam is a crucial step for students aspiring to enter prestigious engineering colleges in India. It tests not only knowledge but also the ability to apply concepts effectively. Practicing MCQs and objective questions is essential for scoring better, as it helps in familiarizing students with the exam pattern and enhances their problem-solving skills. Engaging with practice questions allows students to identify important questions and strengthen their exam preparation.
What You Will Practise Here
Fundamental concepts of Physics, Chemistry, and Mathematics
Key formulas and their applications in problem-solving
Important definitions and theories relevant to JEE Main
Diagrams and graphical representations for better understanding
Numerical problems and their step-by-step solutions
Previous years' JEE Main questions for real exam experience
Time management strategies while solving MCQs
Exam Relevance
The topics covered in JEE Main are not only significant for the JEE exam but also appear in various CBSE and State Board examinations. Many concepts are shared with the NEET syllabus, making them relevant across multiple competitive exams. Common question patterns include conceptual applications, numerical problems, and theoretical questions that assess a student's understanding of core subjects.
Common Mistakes Students Make
Misinterpreting the question stem, leading to incorrect answers
Neglecting units in numerical problems, which can change the outcome
Overlooking negative marking and not managing time effectively
Relying too heavily on rote memorization instead of understanding concepts
Failing to review and analyze mistakes from practice tests
FAQs
Question: How can I improve my speed in solving JEE Main MCQ questions?Answer: Regular practice with timed quizzes and focusing on shortcuts can significantly enhance your speed.
Question: Are the JEE Main objective questions similar to previous years' papers?Answer: Yes, many questions are based on previous years' patterns, so practicing them can be beneficial.
Question: What is the best way to approach JEE Main practice questions?Answer: Start with understanding the concepts, then attempt practice questions, and finally review your answers to learn from mistakes.
Now is the time to take charge of your preparation! Dive into solving JEE Main MCQs and practice questions to test your understanding and boost your confidence for the exam.
Q. If a circuit has a 24V battery and two resistors of 6Ω and 12Ω in series, what is the voltage across the 12Ω resistor?
A.
8V
B.
12V
C.
16V
D.
18V
Show solution
Solution
Using the voltage divider rule, V2 = (R2 / (R1 + R2)) * Vtotal = (12 / (6 + 12)) * 24 = 16V.
Correct Answer:
B
— 12V
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Q. If a circuit has a 9V battery and two resistors of 3Ω and 6Ω in series, what is the voltage across the 6Ω resistor?
A.
3V
B.
6V
C.
9V
D.
4.5V
Show solution
Solution
Using the voltage divider rule, V6Ω = (R6Ω / (R3Ω + R6Ω)) * Vtotal = (6 / (3 + 6)) * 9 = 6V.
Correct Answer:
B
— 6V
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Q. If a circuit has a current of 0.5 A and a resistance of 20 ohms, what is the voltage?
A.
10 V
B.
5 V
C.
15 V
D.
20 V
Show solution
Solution
Using Ohm's Law, V = I * R = 0.5 A * 20 Ω = 10 V.
Correct Answer:
A
— 10 V
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Q. If a circuit has a current of 2 A flowing through a resistor of 5 ohms, what is the voltage across the resistor?
A.
5 V
B.
10 V
C.
2 V
D.
1 V
Show solution
Solution
Using Ohm's Law, V = I * R. Here, V = 2 A * 5 ohms = 10 V.
Correct Answer:
B
— 10 V
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Q. If a circuit has a current of 2A flowing through a 5Ω resistor, what is the power dissipated by the resistor?
A.
5W
B.
10W
C.
15W
D.
20W
Show solution
Solution
Power (P) = I^2 * R = (2^2) * 5 = 4 * 5 = 20W.
Correct Answer:
B
— 10W
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Q. If a circuit has a current of 2A flowing through a 5Ω resistor, what is the voltage across the resistor?
A.
10V
B.
5V
C.
2.5V
D.
1V
Show solution
Solution
Using Ohm's Law, V = I * R = 2A * 5Ω = 10V.
Correct Answer:
A
— 10V
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Q. If a circuit has a current of 3 A and a resistance of 4 ohms, what is the voltage across the circuit?
A.
7 V
B.
12 V
C.
15 V
D.
20 V
Show solution
Solution
Using Ohm's Law, V = IR = 3 A * 4 Ω = 12 V.
Correct Answer:
B
— 12 V
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Q. If a circuit has a current of 3A flowing through a 10Ω resistor, what is the power dissipated by the resistor?
A.
30W
B.
10W
C.
90W
D.
15W
Show solution
Solution
Power (P) = I^2 * R = 3^2 * 10 = 9 * 10 = 90W.
Correct Answer:
A
— 30W
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Q. If a circuit has a current of 3A flowing through a 5Ω resistor, what is the power dissipated in the resistor?
Show solution
Solution
Power (P) = I^2 * R = (3A)^2 * 5Ω = 9A^2 * 5Ω = 45W.
Correct Answer:
A
— 15W
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Q. If a circuit has a current of 3A flowing through a 5Ω resistor, what is the power dissipated by the resistor?
A.
5W
B.
10W
C.
15W
D.
20W
Show solution
Solution
Power (P) = I^2 * R = (3A)^2 * 5Ω = 9 * 5 = 45W.
Correct Answer:
C
— 15W
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Q. If a circuit has a current of 5 A and a resistance of 10 Ω, what is the power consumed in the circuit?
A.
50 W
B.
25 W
C.
10 W
D.
5 W
Show solution
Solution
Power (P) can be calculated using P = I^2 * R = (5 A)^2 * 10 Ω = 25 A^2 * 10 Ω = 250 W.
Correct Answer:
A
— 50 W
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Q. If a circuit has a current of 5 A and a resistance of 10 Ω, what is the voltage?
A.
50 V
B.
5 V
C.
10 V
D.
15 V
Show solution
Solution
Using Ohm's Law, V = I * R = 5 A * 10 Ω = 50 V.
Correct Answer:
A
— 50 V
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Q. If a circuit has a current of 5 amperes and a resistance of 10 ohms, what is the voltage?
A.
50 volts
B.
5 volts
C.
10 volts
D.
15 volts
Show solution
Solution
Using Ohm's Law, V = I * R = 5 A * 10 Ω = 50 V.
Correct Answer:
A
— 50 volts
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Q. If a circuit has a current of 5A flowing through a 10Ω resistor, what is the power dissipated by the resistor?
A.
25W
B.
50W
C.
75W
D.
100W
Show solution
Solution
Power (P) = I^2 * R = 5^2 * 10 = 25 * 10 = 250W.
Correct Answer:
B
— 50W
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Q. If a circuit has a current of 5A flowing through a resistor of 10Ω, what is the voltage across the resistor?
A.
5V
B.
10V
C.
15V
D.
50V
Show solution
Solution
Using Ohm's Law (V = IR), the voltage is V = 5A * 10Ω = 50V.
Correct Answer:
B
— 10V
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Q. If a circuit has a total current of 3 A and a total resistance of 6 ohms, what is the voltage supplied by the battery?
A.
9 V
B.
6 V
C.
3 V
D.
12 V
Show solution
Solution
Using Ohm's law, V = I * R, we have V = 3 A * 6 ohms = 18 V.
Correct Answer:
A
— 9 V
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Q. If a circuit has a total current of 5 A and a total resistance of 10 ohms, what is the voltage across the circuit?
A.
50 V
B.
5 V
C.
10 V
D.
2 V
Show solution
Solution
Using Ohm's law, V = I * R, we have V = 5 A * 10 ohms = 50 V.
Correct Answer:
A
— 50 V
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Q. If a circuit has a total current of 5A and a total resistance of 10Ω, what is the total voltage supplied by the battery?
A.
25V
B.
50V
C.
75V
D.
100V
Show solution
Solution
Using Ohm's Law, V = I * R = 5A * 10Ω = 50V.
Correct Answer:
B
— 50V
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Q. If a circuit has a total resistance of 10 ohms and a total voltage of 50V, what is the total current?
A.
5 A
B.
10 A
C.
2 A
D.
0.5 A
Show solution
Solution
Using Ohm's law, I = V/R = 50V / 10 ohms = 5 A.
Correct Answer:
A
— 5 A
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Q. If a circuit has a total resistance of 10Ω and a current of 1.5A, what is the voltage supplied by the battery?
A.
15V
B.
10V
C.
5V
D.
20V
Show solution
Solution
Using Ohm's Law, V = I * R = 1.5A * 10Ω = 15V.
Correct Answer:
A
— 15V
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Q. If a circuit has a total resistance of 10Ω and a current of 2A flowing through it, what is the voltage across the circuit?
A.
5V
B.
10V
C.
20V
D.
15V
Show solution
Solution
Using Ohm's Law, V = I * R = 2A * 10Ω = 20V.
Correct Answer:
C
— 20V
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Q. If a circuit has a total resistance of 10Ω and a current of 2A flowing through it, what is the total voltage supplied by the battery?
A.
5V
B.
10V
C.
15V
D.
20V
Show solution
Solution
Using Ohm's Law, V = I * R = 2A * 10Ω = 20V.
Correct Answer:
B
— 10V
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Q. If a circuit has a total resistance of 10Ω and a current of 2A, what is the total voltage supplied by the battery?
A.
10V
B.
20V
C.
30V
D.
40V
Show solution
Solution
Using Ohm's Law, V = I * R = 2A * 10Ω = 20V.
Correct Answer:
B
— 20V
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Q. If a circuit has a total resistance of 10Ω and a current of 3A, what is the total voltage supplied by the battery?
A.
10V
B.
20V
C.
30V
D.
40V
Show solution
Solution
Using Ohm's Law, V = I * R = 3A * 10Ω = 30V.
Correct Answer:
C
— 30V
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Q. If a circuit has a total resistance of 10Ω and a current of 5A, what is the total voltage supplied by the battery?
A.
10V
B.
20V
C.
30V
D.
50V
Show solution
Solution
Using Ohm's Law, V = I * R = 5A * 10Ω = 50V.
Correct Answer:
B
— 20V
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Q. If a circuit has a total resistance of 12 ohms and a current of 3A flows through it, what is the voltage across the circuit?
A.
24V
B.
36V
C.
12V
D.
18V
Show solution
Solution
Using Ohm's law, V = I * R = 3A * 12 ohms = 36V.
Correct Answer:
B
— 36V
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Q. If a circuit has a total resistance of 12Ω and a current of 1.5A flowing through it, what is the total voltage supplied by the battery?
A.
18V
B.
12V
C.
6V
D.
9V
Show solution
Solution
Using Ohm's Law, V = I * R = 1.5A * 12Ω = 18V.
Correct Answer:
A
— 18V
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Q. If a circuit has a total resistance of 12Ω and a current of 1.5A flows through it, what is the total voltage supplied by the battery?
A.
18V
B.
12V
C.
6V
D.
24V
Show solution
Solution
Using Ohm's Law, V = I * R = 1.5A * 12Ω = 18V.
Correct Answer:
A
— 18V
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Q. If a circuit has a total resistance of 12Ω and a current of 3A, what is the voltage supplied by the battery?
A.
36V
B.
24V
C.
12V
D.
9V
Show solution
Solution
Using Ohm's Law, V = I * R = 3A * 12Ω = 36V.
Correct Answer:
A
— 36V
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Q. If a circuit has a total resistance of 5Ω and a current of 3A flows through it, what is the voltage across the circuit?
A.
10V
B.
15V
C.
20V
D.
25V
Show solution
Solution
Using Ohm's law, V = I * R = 3A * 5Ω = 15V.
Correct Answer:
B
— 15V
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