Question

The inductive reactance of a coil is $2500\Omega$. On increasing its self-inductance three times, the new inductive reactance will be

• A. $7500\Omega$
• B. $2500\Omega$
• C. $1225\Omega$
• D. $zero$

Answer 1

Answer: (A)

$7500\Omega$

We know that ,
$X_L=\omega L$
therefore when $L$ is made three times inductive reactance will also become three times.
Therefore new reactance will be equal to $3\times 2500\Omega =7500\Omega$.