Menu Close
PHYSICS
Class 12
Conceptual Questions
Chapter 12
Question 1 Why it is not possible to measure the drift speed of electrons by timing their travel along a conductor?
See answer
Question 2 The relationship R = V/I tells us that the resistance of a conductor is directly proportional to the potential difference applied to it. What do you think on this proportion?
See answer
Question 3A heavy duty battery of a truck maintains a current of 3 amperes for 24 hours. How much charge flows from the battery during this time?
See answer
Question 4While analyzing a circuit, the internal resistance of the source is ignored. Why?
See answer
Question 5Under what circumstances, the terminal potential difference of a battery exceeds its emf?
See answer
Question 6 What is the difference between emf and P.D?
See answer
Question 7 The loop rule is based on the conservation of energy principle and the junction rule on the conservation of charge. Explain how these are based on these principles?
See answer
Question 8Why rise in the temperature of a conductor is accomplanied by a rise in the resistance?
See answer
Question 9Does the direction of emf provided by a battery depend on the direction of the current flowing through the battery?
See answer

Questions from the text

  • Why a steel ship becomes magnetized as it is constructed?
    See Answer

1 Comment

  1. Pingback:temperature-and-resistance – msa

Leave a Reply

Your email address will not be published. Required fields are marked *