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| 1. |
A bulb connected in series with a solenoid is lit by a.c. source. If a soft iron core is introduced in the solenoid, will bulb glow brighter ? |
| Answer» Solution :No, the BULB will glow dimmer. This is because, on INTRODUCING soft iron core in the solenoid, its inductance L increases, the inductive REACTANCE `X_(L) = omega L` increases and hence the current through the bulb decreases. | |