An iron cored coil is connected in series with an electric bulb with an AC source as shown………….

Class 12th Physics, Question -An iron cored coil is connected in series with an electric bulb with an AC source as shown in figure. When iron piece is taken out of the coil, the brightness of the bulb will

These are the options for the question :An iron cored coil is connected in series with an electric bulb with an AC source as shown in figure. When iron piece is taken out of
the coil, the brightness of the bulb will

(i) decrease
(ii) increase
(iii) remain unaffected
(iv) fluctuate

The correct answer is -(ii) increase