Question

In a circuit, the frequency is $f=\frac{1000}{2\pi }$Hz and the inductance is 2 henry, then the reactance will be

• A. 200$\Omega$
• B. 200$\mu$ $\Omega$
• C. 2000$\Omega$
• D. 2000$\mu$ $\Omega$

Answer 1

Answer: (C)

2000$\Omega$

Given : $f=\frac{1000}{2\pi }$ $L=2H$
Thus $w=2\pi f=2\pi \times \frac{1000}{2\pi }=1000$
Reactance $X_L=\omega L$

$X_L=1000\times 2=2000\Omega$