Electrostatics questions with answers
106 multiple-choice questions. Open any question for its answer and explanation.
- A capacitor having capacitance of 5 uF is charged to a potential difference of 10,000 V. The energy stored in the capacitor is
- A charge which when placed in vacuum from an equal and similar charge repels with a force of 9 x 103 N, is known as
- at a point is equal to the negative potential gradient at that point.
- A capacitor consists of two
- capacitors are used for audio frequency and radio frequency coupling and tuning.
- The units of volume charge density are
- capacitors are mainly used for radio frequency tuning.
- capacitors can be used only for D.C.
- Electric field intensity is a quantity
- Electric displacement is a______quantity.
- Which of the following is not a vector ?
- An electric field line and an equipotential surface are
- The relative permittivity has the following units
- A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is
- Which of the following capacitors is marked for polarity ?
- The phenomenon of an uncharged body getting charged merely by the nearness of a charged body is known as
- Which is the most superior dielectric out of the following ?
- To prevent the generation of static charges on rubber or flat leather
- The lines of force due to charged particles are
- The inverse of capacitance is called
- The direction of electric field due +0 positive charge is .
- The capacity of capacitor bank used in power factor correction is expressed in terms of
- The capacitance of a capacitor is not affected by
- The potential gradient across the material of low permittivity is than across the material of high permittivity.
- Paper condenser is