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Current Electricity - Ohms Law

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Q. In a circuit with a voltage of 24V and a current of 6A, what is the resistance? (2020)
  • A.
  • B.
  • C.
  • D.
Q. In a circuit, if the current is 5A and the resistance is 10Ω, what is the voltage across the resistor? (2021)
  • A. 15V
  • B. 50V
  • C. 5V
  • D. 10V
Q. In a circuit, if the current is 5A and the resistance is 10Ω, what is the voltage? (2020)
  • A. 15V
  • B. 50V
  • C. 5V
  • D. 10V
Q. In a circuit, if the voltage is 24V and the current is 3A, what is the resistance? (2023)
  • A.
  • B.
  • C.
  • D. 12Ω
Q. What happens to the current in a circuit if the voltage is increased while keeping the resistance constant? (2023)
  • A. It decreases
  • B. It increases
  • C. It remains the same
  • D. It becomes zero
Q. What happens to the current in a circuit if the voltage is increased while the resistance remains constant? (2021)
  • A. The current decreases
  • B. The current increases
  • C. The current remains the same
  • D. The current becomes zero
Q. What happens to the current in a circuit if the voltage is tripled while the resistance remains constant? (2023)
  • A. It triples.
  • B. It halves.
  • C. It remains the same.
  • D. It increases by a factor of nine.
Q. What happens to the total resistance in a parallel circuit when more resistors are added? (2019)
  • A. It increases
  • B. It decreases
  • C. It remains the same
  • D. It becomes infinite
Q. What is the relationship between voltage, current, and resistance as described by Ohm's Law? (2021)
  • A. V = I + R
  • B. V = I * R
  • C. V = I / R
  • D. V = R / I
Q. What is the relationship between voltage, current, and resistance as stated by Ohm's Law? (2021)
  • A. V = I + R
  • B. V = I * R
  • C. V = I / R
  • D. V = R / I
Q. Which of the following materials is considered a good conductor of electricity? (2022)
  • A. Rubber
  • B. Copper
  • C. Wood
  • D. Glass
Q. Which of the following statements is true according to Ohm's Law? (2019)
  • A. Resistance is independent of temperature
  • B. Voltage is inversely proportional to current
  • C. Current is directly proportional to voltage
  • D. Resistance increases with increasing current
Showing 31 to 42 of 42 (2 Pages)

Current Electricity - Ohms Law MCQ & Objective Questions

Understanding "Current Electricity - Ohms Law" is crucial for students preparing for school and competitive exams in India. This topic not only forms the foundation of electrical concepts but also frequently appears in various examination formats. Practicing MCQs and objective questions on this subject can significantly enhance your exam preparation and boost your scores.

What You Will Practise Here

  • Fundamental concepts of current, voltage, and resistance
  • Ohm's Law and its mathematical representation
  • Applications of Ohm's Law in real-world scenarios
  • Understanding series and parallel circuits
  • Key formulas related to electrical circuits
  • Graphical representation of Ohm's Law
  • Common units and measurements in electricity

Exam Relevance

The topic of "Current Electricity - Ohms Law" is highly relevant in CBSE, State Boards, NEET, and JEE examinations. Students can expect questions that test their understanding of Ohm's Law, its applications, and problem-solving skills in circuit analysis. Common question patterns include numerical problems, conceptual questions, and application-based scenarios, making it essential to master this topic for effective exam performance.

Common Mistakes Students Make

  • Confusing the relationship between voltage, current, and resistance
  • Misapplying Ohm's Law in complex circuits
  • Overlooking the significance of units in calculations
  • Failing to differentiate between series and parallel circuits

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 and inversely proportional to the resistance.

Question: How can I apply Ohm's Law in circuit problems?
Answer: You can apply Ohm's Law by using the formula V = IR, where V is voltage, I is current, and R is resistance, to solve for any unknown variable in circuit problems.

Now is the time to enhance your understanding of "Current Electricity - Ohms Law"! Dive into our practice MCQs and test your knowledge to ensure you are well-prepared for your upcoming exams.

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