Question

What could be value of $R_1$ for which current through $R$ is zero?

• A. $4\Omega$
• B. $40\Omega$
• C. $10\Omega$
• D. $6\Omega$

Answer 1

Answer: (D)

For $R_1=6\Omega$, circuit will be balanced Wheatstone Bridge, current through R will be zero for any arbitrary value.