CBSE 12th Physics (Term 1) Paper 2021-22 | Electrostatics Question 26 | Physics | Class 12 - ExamSIDE.com

1

CBSE 12th Physics (Term 1) Paper 2021-22

MCQ (Single Correct Answer)

+0.77

-0

Equipotentials at a large distance from a collection of charges whose total sum is not zero are -

A

spheres

B

planes

C

ellipsoids

D

paraboloids

2

CBSE 12th Physics (Term 1) Paper 2021-22

MCQ (Single Correct Answer)

+0.77

-0

Four charges $$-$$q, $$-$$q, +q and +q are placed at the corners of a square of side 2 L is shown in figure. The electric potential at point A midway between the two charges +q and +q is -

CBSE 12th Physics (Term 1) Paper 2021-22 Physics - Electrostatics Question 14 English

CBSE 12th Physics (Term 1) Paper 2021-22 Physics - Electrostatics Question 14 English

A

$${1 \over {4\pi { \in _0}}}{{2q} \over L}\left( {1 - {1 \over {\sqrt 5 }}} \right)$$

B

$${1 \over {4\pi { \in _0}}}{{2q} \over L}\left( {1 + {1 \over {\sqrt 5 }}} \right)$$

C

$${1 \over {4\pi { \in _0}}}{q \over {2L}}\left( {1 - {1 \over {\sqrt 5 }}} \right)$$

D

zero

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