Electrostatic

1. _________ field is associated with the capacitor.

1. Electric
2. Magnetic
3. Both (a) and (b)
4. None of the above

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2. In a cable capacitor, voltage gradient is maximum at the surface of the

1. earth
2. conduction
3. sheath
4. insulator

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3. 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.

1. 37, initial
2. 62, initial
3. 62, final
4. 37, final

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4. "The surface integral of the normal component of the electric displacement D over any closed surface equals the charge enclosed by the surface". The above statement is associated with

1. Gauss's law
2. Kirchhoff s law
3. Faraday's law
4. Lenz's law

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5. "The total electric flux through any closed surface surrounding charges is equal to the amount oflcharge enclosed". The above statement is associated with

1. Coulomb's square law
2. Gauss's law
3. Maxwell's first law
4. Maxwell's second law

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6. 1 volt/meter is same as

1. 1 meter/coulomb
2. 1 newton meter
3. 1 newton/meter
4. 1 joule/coulomb

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7. A capacitance is a circuit component that opposes the change in circuit

1. current
2. voltage
3. impedance
4. none of the above

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

1. 0.2 s
2. 0.4 s
3. 0.6 s
4. 0.8 s

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9. A capacitor charged to 200 V has 2000 (iC of charge. The value of capacitance will be

1. 10 F
2. 10 uF
3. 100 nF
4. 1000 uF

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10. A capacitor consists of

1. two insulators separated by a conductor
2. two conductors separated by an insulator
3. two insulators only
4. two conductors only

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