Question

The power factor of a circuit in which a box having unknown electrical devices connected in series with a resistor of resistance $3\Omega$ is $3/5$. The reactance of the box is

• A. $5\Omega$
• B. $\frac{5}{3}\Omega$
• C. $4\Omega$
• D. $\frac{4}{3}\Omega$

Answer 1

The correct option is C $4\Omega$

The correct option is C