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Physics
What could be value of R1 for which current through R is zero?
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Q. What could be value of $R_1$ for which current through $R$ is zero?
A
$4 \,\Omega$
B
$40 \,\Omega$
C
$10 \,\Omega$
D
$6 \,\Omega$
Solution:
For $R_1 \,=\, 6 \Omega$, circuit will be balanced Wheatstone Bridge, current through R will be zero for any arbitrary value.