Which of the following does Not use magnetic effect of cu...
Which of the following does Not use magnetic effect of current to function?
Lead acid accumulator
An electric bell
A moving coil galvanometer
A telephone receiver
Correct answer is A
Lead acid accumulator does not use the magnet effect of current. It is an electrochemical cell that produces current as a result of a chemical reaction
If the frequency of an emitted x-ray is 1.6 x 1016Hz, the accelerating potential is? [e = 1....
in a pure semiconductor, the number of electrons in the conduction band is ...
A ball is swung in a horizontal circle of centre O with a constant speed. acceleration? ...
PQ is a thin rod on a horizontal table, RS is a plane mirror inclined at 45∘C to the hor...