Question

14. If the voltage across the lamp drops by 1 per cent, the
power drawn will be reduced by
(a) 1%
(b) 2%
(c) 4%
(d) 0.4%​

Answer 1

Answer:

(b) = 2% because if 1% of voltage decreased then 2% of power drops

as,power(2%) = volt(1%) [in the same circuit]