Q. When a dielectric slab is introduced in a parallel plate capacitor, the potential difference between plates will remain unchargeddecreaseincreasebecome zero Answer: decrease

Q. In the case of a lossy capacitor, its series equivalent resistance value will be smallvery smalllargezero Answer: large

Q. The power dissipated in a pure capacitor is zeroproportional to applied voltageproportional to value of capacitanceboth B. and C. above Answer: zero

Q. The sparking between two electrical contacts can be reduced by inserting capacitor in parallel with contactscapacitor in series with each contactresistance in linenone of the above Answer: capacitor in parallel with contacts

Q. Which of the following capacitors has relatively shorter shelf life ? Mica capacitorElectrolytic capacitorCeramic capacitorPaper capacitor Answer: Electrolytic capacitor

Q. If A.C. voltage is applied to capacitive circuit, the alternating current can flow in the circuit because varying voltage produces the charging and dicharging currentsof high peak valuecharging current can flowdischarge current can flow Answer: varying voltage produces the charging and ...

Q. Two plates of a parallel plate capacitor after being charged from a constant voltage source are separated apart by means of insulated handles, then the Voltage across the plates increasesvoltage across the plates decreasescharge on the capacitor decreasescharge on the capacitor increases ...

Q. The dissipation factor of a good dielectric is of the order of 0.00020.0020.020.2 Answer: 0.0002

Q. In a capacitor the electric charge is stored in metal platesdielectricboth A. and B.none of the above Answer: dielectric

Q. Which of the following expression is correct for electric field strength ? E = D/EE = D2/tE = jtDE= nD2 Answer: E = D/E