Question

An ideal inductor is in turn put across $220V,50Hz$ and $220V,100Hz$ supplies. The current flowing through it in the two cases will be then

• A. equal
• B. different
• C. zero
• D. infinite

Answer 1

The correct option is B different

The current in the inductor coil is given by $I=\frac{V}{X_L}=\frac{V}{2\pi \upsilon L}$
Since frequency $\upsilon$ in the two cases is different, hence the current in two cases will be different.