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Question
Physics
Find the value of R for which no current will flow through 5 V battery.
Q. Find the value of
R
for which no current will flow through
5
V
battery.
1757
210
Current Electricity
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A
4
Ω
4%
B
1
Ω
69%
C
3
Ω
4%
D
5
Ω
24%
Solution:
If no current flows through
5
V
battery, then potential difference across
f
and e is
5
V
. So potential difference across
d
and
c
is also
5
V
.
i
=
R
+
1
10
i
R
=
5
⇒
(
R
+
1
)
10
R
=
5
⇒
R
=
1
Ω