A bulb is connected first with `DC` and the then `AC` of same voltage then it will shine brightly with

...... Sun shines brightly.

Assertion : An electric bulb is first connected to a dc source and then to a ac source having the same brightness in both the cases. Reason : The peak value of voltage for an A.C. source is sqrt(2) times the root mean square voltage.

Assertion: If an inductor coil is connected to DC source, the current supplied by it is I_(1) . If the same coil is connected with an AC source of same voltage. Then current is I_(2) , then I_(2) lt I_(1) . Reason: In AC circuit, inductor coil offers more resistance.

An iron choke and an electric bulb are connected in series with AC mains. On introducing a soft iron bar in the coil, the intensity of bulb will

A coil and a bulb are connected in series with a dc source, a soft iron core is then ninserted in the coil. Then

An air core coil and an electric bulb are connected in series with an AC source. If an iron rod is put in the coil, then the intensity of light of the bulb will

An electric heater is connected to DC and AC sources of equal voltage turn by turn. In which case (AC or DC) the rate of heat production will be more ?

An air bubble in a jar of water shines brightly. Why ?