Which process is involved to store charge in capacitors:
Rubbing
Electrostatic induction
Conduction
Electromagnetic induction
Nichrome wire is an alloy of:
Lead and zinc
Silver and copper
Nickel and chromium
Iron and copper
A capacitor stores 0.24 coulombs at 10 volts. It capacitance is:
0.024F
0.12F
0.6F
0.8F
Application of electrostatic is:
Car painting
Photocopying
Extracting of dust
All of these
Which is not an e.m.f source:
Generator
Solar cell
Battery
Rheostat
Instrument used for detecting and testing the nature of charge on a body is called:
Incubator
Spectroscope
voltmeter
electroscope
In fixed capacitor dielectric used is:
Paper
Metal
Mica
Paper & mica
A paper capacitor is usually available in the form of:
Tubes
Rolled foil
Disc
Plates
