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A parallel plate capacitor is charged with a battery and afterwards the battery is removed. if now, with the help of insulating handles, the distance between the plates is increased, then

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Important Questions on Capacitance

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Can a metal be used as a medium for dielectric?

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A parallel plate air capacitor has a capacitance C. When it is half-filled with a dielectric of dielectric constant 5, the percentage increase in the capacitance will be:-

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The equivalent capacitance between the points A and B in the given diagram is :

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In an adjoining figure, three capacitors C1, C2and C3 are joined to a battery. The correct condition will be:

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A number of capacitors, each of capacitance, 1 µF and each one of which gets punctured if a potential difference just exceeding, 500 V is applied, are provided. Then an arrangement suitable for giving a capacitor of capacitance, 3 µF across which, 2000 V may be applied requires at least:

 

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The effective capacity of the network between terminals A and B is :

 

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A series combination of two capacitances of value 0.1 µF and 1 µF is connected with a source of voltage 500 volts. The potential difference in volts across the capacitor of value 0.1 µF will be:

 

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The value of equivalent capacitance of the combination shown in the figure, between the points P and Q is :

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