Question
An alternating voltage V = V _ 0 t is applied across a circuit. As a result, a current I = I _ 0 ( t - 2 ) flows in it. The power consumed per cycle is
BITSAT
Physics
Alternating Current
2021
BITSAT 2021
BITSAT Physics Question (2021) — Solution
Options
- A. zero
- B. 0.5 ~V _ 0 I _ 0
- C. 0.707 ~V _ 0 I _ 0
- D. 1.414 ~V _ 0 I _ 0
Answer
A. zero
Step-by-step solution
The phase angle between voltage V and current I is 2 . Therefore, power factor = ( 2 )=0. Hence the power consumed is zero.
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