Physics Past Questions and Answers

A galvanometer has a resistance of 5Ω. By using a shunt wire of resistance 0.05Ω, the galvanometer could be converted to an ammeter capable of reading 2Amp. What is the current through the galvanometer?

In fleming's right-hand rule, the thumb, the forefinger and the middle finger if held mutually at right angles represent respectively, the

At what frequency would a 10H inductor have a reactance of 2000Ω?

The core of an efficient transformer should consist of laminated pieces of metal in order to

Gamma rays are produced when