Electrostatic Potential & Capacitance

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Electrostatic Potential & Capacitance - 04

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Correo electrónico *

Name of Student *

School and City *

Q1. A parallel plate condenser is immersed in an oil of dielectric constant 2. The field between the plates is *

1 punto

increased, proportional to – 2

decreased, proportional to -1/2

increased, proportional to 2

decreased, proportional to 1/2

Q2. A conductor carries a certain charge. When it is connected to another uncharged conductor of finite capacity, then the energy of the combined system is *

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more than that of the first conductor

less than that of the first conductor

equal to that of the first conductor

uncertain

Q3. The energy stored in a condenser of capacity C which has been raised to a potential V is given by *

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Q4. Capacitiors are used in electrical circuits where applicances need more *

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voltage

current

resistance

power

Q5. The work done in placing a charge of 8 × 10^–18 coulomb on a condenser of capacity 100 micro-farad is *

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Q6. An arrangement which consists of two conductors separated by a dielectric medium is called *

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resistor

inductor

rectifier

capacitor

Q7. Capacity of a parallel plate condenser can be increased by *

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increasing the distance between the plates

increasing the thickness of the plates

decreasing the thickness of the plates

decreasing the distance between the plates

Q8. In a charged capacitor, the energy resides *

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in the positive charges.

in the field between the plates.

around the edges of the capacitor plates

in both the positive and negative charges.

Q9. The resultant capacitance of n condenser of capacitances C1, C2 .... Cn connected in series is given by *

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Q10. Which of the following is / are true about the principle of Van de Graaff generator? *

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(a) The action of sharp points.

(b) The charge given to a hollow conductor is tranferred to outer surface and is distributed uniformly over it.

(d) Both (a) and (b)

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