Question
Physics Question on Conservation of energy
A 240 V,60 Hz voltage source is connected to resistor of 60Ω. Find the value of net power consumed by resistance over a complete cycle.
A
(A) 0 W
B
(B) 1000 W
C
(C) 960 W
D
(D) 540 W
Answer
(C) 960 W
Explanation
Solution
Explanation:
Given,V=240 V and R=60ΩPower consumed by resistance is given by:P=V×ICurrent flowing through the circuit is given by,⇒I=VR⇒I=24060I=4 ANet power consumed by resistorP=240×4=960 WHence, the correct option is (C).