An air cored coil L and a bulb B are connected in series to the a.c. mains as shown in the given figures SAQ. 41:

The bulb glows with some brightness. Now will the glow of the bulb change if an iron rod is insertd in the coil? Give reasons in support of your answer.

An capacitor C, a variable resistor R and a bulb B are connected in series to the ac mains in circuits as shown in Fig. The bulb glows with some brightness. How will the glow of the bulb change if the resistance R is increased keeping the same capacitance.

An capacitor C, a variable resistor R and a bulb B are connected in series to the ac mains in circuits as shown in Fig. The bulb glows with some brightness. How will the glow of the bulb change if a dielectric slab is introduced between the plates of the capacitor, keeping resistance R to be the same.

An air core coil and an electric bulb are connected in series across a 220V-50Hz a.c. source. The bulb glows with some brightness. How will the glow of the bulb be affected on introducing a capacitor in series in the circuit? Justify your answer.

The bulb doesn't glow in the setup shown in the given figure .List the possibl reasons .Explain your answer.

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?

An electric lamp connected in series with a variable capacitor and an a.c. source is glowing with some brightness. How will the brightness change on increasing the value of capacitance and why?

A coil and an electric bulb are connected in series with an ac. Source. On introducing a soft iron bar inside the coil, the intensity of the bulb will

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.