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A capacitor is charged by a battery. The...

A capacitor is charged by a battery. The battery is removed and another identical uncharged capacitor is connected in parallel. The total electrostatic energy of resulting system

A

increases by a factor of 4

B

Decreases by a factor of 2

C

Remains the same

D

increases by a factor of 2

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-ELECTROSTATIC POTENTIAL AND CAPACITANCE -ASSIGNMENT SECTION - C
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  2. The diagram below show regions of equipotential: A positive charge i...

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  3. A parallel plate capacitor of area A, plate separation d and capacitan...

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  4. A capacitor of 2 mu F is charged as shown in the diagram. When the swi...

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  5. A parallel plate air capacitor has capacity C, distance of separation ...

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  6. A conducing sphere of radius R is given a charge Q. The electric poten...

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  7. In a region, the potential is represented by V(x,y,z) = 6x - 8xy - 8y ...

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  8. Two thin dielectric slabs of dielectric constants K(1) and K(2) (K(1) ...

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  9. A, B and C are three points in a uniform electric field. The electric ...

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  10. An electric dipole of moment p is placed in an electric field of inten...

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  11. Four point charges, Q - q,2q and 2Q are placed, one at each corner of ...

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  12. A parallel plate capacitor has a uniform electric field E in the space...

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  13. Two metallic spheres of radii 1 cm and 3 cm are given charges of –1 × ...

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  14. Four electric charges +q,+q,-q and -q are placed at the corners of a s...

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  15. Three charges, each +q , are placed at the corners of an isosceles tri...

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  16. The electri potential V at any point O (x, y, z all in metres) in spac...

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  17. A series combination of n(1) capacitors, each of value C(1), is charge...

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  18. A condenser of capicity C is charged to a potential difference of V(1)...

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  19. Two parallel metal plates having charges +Q and –Q face each each othe...

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