The RMS value of an alternating current, which when passed through a resistor produces heat three times of that produced by a direct current of 2 A in the same resistor, is-
A. 6 A
B. 3 A
C. 2 A
D. 2√3 A
Answer:D
The RMS value of an alternating current, which when passed through a resistor produces heat three times of that produced by a direct current of 2 A in the same resistor, is-
A. 6 A B. 3 A C. 2 A D. 2√3 A