A solenoid with an iron core and a bulb are connected to a d.c. source. How does the brightness of the bulb change when iron core is removed from the solenoid ?

A solenoid with an iron core and a bulb are connected to a d.c. source. How does the brightness of the bulb change, when the iron core is removed from the solenoid?

A solenoid with an iron core and a bulb are connected to a.d.c.source. How does the brightness of the bulb change, when the iron core is removed from the solenoid?

A solenoid with an iron core acts as _______

An air coil solenoid is connected to an a.c. sources and a bulb. If an iron core is insernted in the solenoid, how does the brightness of the bulb change? Give reason for your answer.

A solenoid having an iron core has its terminals connected across an ideal DC source and it is in steady state.If the iron core is removed the current flowing through the solenoid just after removal of rod

A solenoid having an iron core has its terminals connected across an ideal DC source and it is in steady state.If the iron core is removed the current flowing through the solenoid just after removal of rod

A bulb and a capacitor are connected in series to an a.c. source of variable frequency. How will the brightness of the bulb change on increasing the frequency of a.c. source ?