Multiple choice

In which of the following cases an electrical circuit may be broken?

(a) Circuit is made up of cotton threads. (b) Circuit is made up of copper wires. (c) Current flows from positive to negative. (d) Current flows from negative to positive.

  1. Both (b) and (c)

  2. Both (a) and (d)

  3. Both (a) and (c)

  4. Both (b) and (d)

  5. -
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct answer. Circuit is broken when it is made up of cotton threads, as cotton is a bad conductor of electricity. Current cannot flow from negative to positive, so the circuit is broken.

Keep practicing — related questions