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Current Electricity

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Q. What is the voltage across a 12Ω resistor carrying a current of 3A? (2023)
  • A. 36V
  • B. 24V
  • C. 12V
  • D. 18V
Q. What is the voltage across a 5Ω resistor carrying a current of 3A? (2023)
  • A. 15V
  • B. 10V
  • C. 5V
  • D. 20V
Q. What is the voltage across a 5Ω resistor if a current of 3A flows through it? (2020)
  • A. 15V
  • B. 10V
  • C. 5V
  • D. 20V
Showing 91 to 93 of 93 (4 Pages)

Current Electricity MCQ & Objective Questions

Current Electricity is a vital topic in physics that plays a significant role in various school and competitive exams. Understanding this concept not only helps in grasping fundamental principles but also enhances your ability to tackle MCQs and objective questions effectively. Practicing Current Electricity MCQ questions can significantly improve your exam preparation and boost your confidence in answering important questions.

What You Will Practise Here

  • Ohm's Law and its applications
  • Series and parallel circuits
  • Electrical power and energy calculations
  • Resistance, capacitance, and inductance concepts
  • Kirchhoff's laws and circuit analysis
  • Understanding current, voltage, and resistance relationships
  • Practical applications of Current Electricity in daily life

Exam Relevance

Current Electricity is a crucial topic in various examinations, including CBSE, State Boards, NEET, and JEE. Students can expect questions that assess their understanding of key concepts, calculations, and application-based scenarios. Common question patterns include numerical problems, theoretical questions, and circuit diagram analysis, making it essential to master this topic for scoring well in exams.

Common Mistakes Students Make

  • Confusing series and parallel circuit calculations
  • Misapplying Ohm's Law in complex circuits
  • Overlooking units in calculations, leading to incorrect answers
  • Failing to understand the significance of Kirchhoff's laws
  • Neglecting practical applications, which can lead to conceptual gaps

FAQs

Question: What is Ohm's Law?
Answer: Ohm's Law states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points, provided the temperature remains constant.

Question: How do you calculate total resistance in a series circuit?
Answer: In a series circuit, the total resistance is the sum of all individual resistances: R_total = R1 + R2 + R3 + ...

Ready to enhance your understanding of Current Electricity? Dive into our practice MCQs and test your knowledge to excel in your exams!

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