Question

For what value of $R$ in circuit, current through $4\Omega$ resistance is zero?

• A. $4\Omega$
• B. $1\Omega$
• C. $3\Omega$
• D. $5\Omega$

Answer 1

Answer: (B)

As current through ' $4{\Omega }^{\prime }$ ' is zero, there should be no potential drop across it.

Value of $R$ for this condition $=1\Omega$