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Byju's Answer
Standard XII
Physics
Power in an AC Circuit
For an ac cir...
Question
For an ac circuit
V
=
15
s
i
n
ω
t
and
I
=
20
c
o
s
ω
t
the average power consumed in this circuit is
A
300
Watt
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B
150
Watt
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C
75
Watt
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D
Zero
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Solution
The correct option is
A
Zero
As we know,
P
=
V
r
m
s
I
r
m
s
c
o
s
ϕ
;
s
i
n
ϕ
=
90
∘
, So
P
=
0
Suggest Corrections
0
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