Question

The instantaneous value of emf and current in an A.C. circuit are: $E=1.414sin(100\pi t-\frac{\pi }{4})$, $I=0.707sin\left(100\pi t\right)$ .The reactance of the circuit
will be

• A. $\sqrt{2}$ $\frac{1}{2}\Omega$
• B. 2$\Omega$
• C. $\frac{1}{2}\Omega$
• D. $\frac{1}{\sqrt{2}}\Omega$

Answer 1

The correct option is B 2$\Omega$

reactance of the circuit = $\frac{E_{max}}{I_{max}}$
$=\frac{1.414}{0.707}$
$=2\Omega$