Current Electricity 3 Question 6
6. A current of was passed through an unknown resistor which dissipated a power of . Dissipated power when an ideal power supply of is connected across it is
(a)
(b)
(c)
(d)
(2019 Main, 10 Jan II)
Show Answer
Solution:
- Power dissipated by any resistor
, when current flows through it is,
Given
Using Eq. (i), we get
or
$$