Question

Statement 1: Both dc and ac can be measured by a hot wire instrument.
Statement 2: the hot wire instrument is based on the principle of magnetic effect of current.
A. Statement 1 is true, statement 2 is true, Statement 2 is the correct explanation for statement 1.
B. Statemet 1 is True, Statement 2 is true , Statement 2 is NOT the correct explanation for Statement 1
C. Statement 1 is True, Statement 2 is False.
D. Statement 1 is False, Statement 2 is true

Answer 1

Correct Answer - C
both ac and dc produce heat which is proportional to the square of current. The reversal of direction of current in ac is immeterial as far as production of heat is concerned.