An inductor L of inductance `X_(L)` is connected in series with a bulb B and an AC source . How would brightness of the bulb change when a capacitor of reactance `X_(C)=X_(L)` is inserted in series .

An inductor L of inductance X_(L) is connected in series with a bulb B and an AC source . How would brightness of the bulb change when number of turns in the inductor is reduced

An inductor L of inductance X_L is connected in series with a bulb B and an source. How would brightness of the bulb change when the number of turns of the inductor is reduced an iron rod is inserted in the inductor and a capacitor of reactance X_C=X_L is inserted in series in the circuit. Justify your answer in each case.

As shown in figure an electric lamp having coil of negligible inductance conneted in series with a capacitor and an a.c. source is glowing certain brightness. How does the brightness of the lamp change on reducing the capacitance. Justify 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 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 capacitor of 100 muF , a resistor of 20 Omega and an inductor of inductance L are connected in series with an a.c. source of frequency 50 Hz. Calculate the value of inductance L of the inductor, if phase angle between current and voltage is zero.

As shown in figure an electric lamp having coil of negligible inductance conneted in series with a capacitor and an a.c. source is glowing certain brightness. How does the brightness of the lamp change on reducing the frequency. justify your answer.

A lamp is connected in series with a capacitor to a high frequency a.c. source. How will the glow of the lamp change, when it is connected directly to the same source? Explain your answer.