Choke coil is commonly used in fluorescent tubes , mercury lambs etc.
What is choke coil?

Plaster of paris is used for making statues, models etc. What is its chemical name?

Classify the following as those suitable for fluorescent lamps and for arc lamps. The main part is carbon rods , The heating coil is coated with thorium oxide , used in search lights , more harmful for the environment , more intense light , ultraviolet rays are produced.

Choose the correct alternative from the bracket.:- (AC current//choke coil) is a pure inductor used to reduce the alternating current without the wastage of energy.

A capillary tube when dipped into water, it is commonly observed that water will rise through the tube. If the radius of the tube becomes double, what happens to the height of the water column in the tube?

Geo stationary satellites are commonly used for communication purpose. What are the requirements of a geostationary satellite for its orbital motion.