defence exam BSF Head Constable (RO/RM) Mock Test 2023 Physics Electromagnetic Oscillations and Alternating Current
A light bulb and an open coil inductor are connected in series to an ac source as shown in figure. Now an iron rod is inserted into the interior of the inductor, The glow of the light bulb
1
decreases
2
increases
3
unchanged
4
bulb will be fused