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A variable parallel plate capacitor and ...

A variable parallel plate capacitor and an electroscope are connected in parallel to a battery. The reading of the electroscope would be decreased by.

A

increasing the area of overlap of the plates

B

placing a block of paraffin wax between the plates

C

decreasing the distance between the plates

D

decreasing the battery potential

Text Solution

Verified by Experts

The correct Answer is:
D
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NARAYNA-ELECTROSTATIC POTENTIAL AND CAPACITANCE-C.U.Q (Capacitors and Capacitance)
  1. A parallel plate capacitor of capacity C(0) is charged to a potential ...

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  2. Select correct statements (a) charge cannot be isolated (b) Repuls...

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  3. A variable parallel plate capacitor and an electroscope are connected ...

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  4. Three idential capacitors are combined differently. For the same volta...

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  5. The magnitude of electric field vecE in the annular region of a charge...

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  6. Two idential capacitors are joined in parallel, charged to a potential...

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  7. Two parallel plate air capacitors are construted, one by a pair of iro...

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  8. Select correct statement for a capacitor having capacitance C, is conn...

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  9. A number of spherical conductors of different radius have same potenti...

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  10. The electric field (vec( E)) between two parallel plates of a capacito...

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  11. Two condensers of unequal capacities are connected in series across a ...

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  12. A parallel plate capacitor is charged and then isolated. On increasing...

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  13. A parallel plate capacitor is charged by connecting is plates to the t...

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  14. A parallel plate capacitor is charged and the charging battery is then...

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  15. A parallel plate air condenser is charged and then disconnected from t...

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  16. When two identical condensers are connected in series choose the corre...

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  17. Two unequal capacitors, initially uncharged, are connected in series a...

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  18. Which of the following will not increase the capacitance of an air ca...

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  19. In a parallel-plate capacitor, the region between the plates is filled...

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  20. Which of the following statements are correct ? (a) When capacitors ...

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