Electrostatics MCQs

## The bridge used for the measurement of the value of the capacitance is

Q. The bridge used for the measurement of the value of the capacitance is Wien’s bridgeWheatstone bridgeSchering bridgeHay’s bridge Answer: Schering bridge

## The ohmmeter reading for a short circuited capacitor is

Q. The ohmmeter reading for a short circuited capacitor is infinityfew kilo ohmsfew megohmszero Answer: zero

## The capacitance C is charged through a resistance R. The time constant of the charging circuit is given by

Q. The capacitance C is charged through a resistance R. The time constant of the charging circuit is given by CIR1/RCRCRIC Answer: RC

## Resonant circuits that tune radios to particular frequencies are called

Q. Resonant circuits that tune radios to particular frequencies are called plate circuitsradio circuitsfilter circuitsfiber circuits Answer: filter circuits

## is that property of a capacitor which delays any change of voltage across it

Q. is that property of a capacitor which delays any change of voltage across it InductanceCapacitancePotential gradientNone of the above Answer: Capacitance

## The time constant and R-C circuit may also be defined as the time during which the charging current falls to ______ percent of its initial maximum value

Q. The time constant and R-C circuit may also be defined as the time during which the charging current falls to ______ percent of its initial maximum value 37426373 Answer: 37

## A capacitance of 100 fiF is connected in series with a resistance of 8000 £2. The time constant of the circuit is

Q. A capacitance of 100 fiF is connected in series with a resistance of 8000 £2. The time constant of the circuit is 0.2 s0.4 s0.6 s0.8 s Answer: 0.8 s

## The time constant of an R-C circuit is defined as the time during which capacitor charging voltage actually rises to ______ percent of its value

Q. The time constant of an R-C circuit is defined as the time during which capacitor charging voltage actually rises to ______ percent of its value. 37, initial62, initial62, final37, final Answer: 62, final

## As per Coulomb’s law, force of attraction or repulsion between two point charges is directly proportional to

Q. As per Coulomb's law, force of attraction or repulsion between two point charges is directly proportional to sum of the magnitude of chargessquare of the distance between themproduct of the magnitude of chargescube of the distance Answer: product of the magnitude of charges

## The presence of an uncharged conductor near a charged one increases the

Q. The presence of an uncharged conductor near a charged one increases the charge of the charged conductorcapacity of the charged conductorpotential of the charged conductorall of the above Answer: capacity of the charged conductor

## A parallel plate capacitor is charged and the charging battery is disconnected. Then a dielectric slab is introduced between the plates. The quantity that remains unchanged is

Q. A parallel plate capacitor is charged and the charging battery is disconnected. Then a dielectric slab is introduced between the plates. The quantity that remains unchanged is________ potentialcapacityenereycharge Answer: charge