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Standard X
Physics
Energy
Question
Number of kilowatt-hours =
v
o
l
t
×
a
m
p
e
r
e
×
.
.
.
.
.
.
.
.
.
.
.
1000
time in seconds
time in minutes
time in hours
time in days
A
time in days
B
time in seconds
C
time in hours
D
time in minutes
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Solution
Verified by Toppr
Power,
P
=
V
I
1 kilowatt-hour means
P
=
1
k
W
=
1000
W
and time
t
=
1
h
o
u
r
As kWh is the unit of electrical energy so
1
k
W
h
=
V
I
t
/
1000
.
Thus, time will be in hour.
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