An electric bulb operates at 18 V dc. If this bulb is connected to an ac source and gives normal brightness, what would be the peak value of the source?

An electric bulb B and a parallel plate capacitor C are connected in series to an ac source. The bulb glows with some brightness. How will the glow of the bulb affected on introducing a dielectric slab between the plates of the capaci tor? Give reasons in support of your answer.

A 220V, 100W bulb is connected to a 110V source. The power consumed by the bulb is

A long resistance wire is stretched between two iron nails. A battery of 2V is applied across the wire. One end of a torch bulb is connected to nail and other end is made in contact as shown in figure. - If this wire slides over the resistance wire from nail 1 to nail 2, what happens to the brightness of the bulb.

A long resistance wire is stretched between two iron nails. A battery of 2V is applied across the wire. One end of a torch bulb is connected to nail and other end is made in contact as shown in figure. - What happens to the reading, if we change 2V with 3V during the time of reading

An electric bulb marked 500W,250 V is connected to a 250 V supply. Calculate the resistance of the bulb.

An electric bulb has marking 110 V , 100W on it . What is the resistance of electric bulb ?