AIPMT 2014 | Electrostatics Question 30 | Physics

AIPMT 2014

MCQ (Single Correct Answer)

-1

A conducting sphere of radius R is given a charge Q. The electric potential and the electric field at the centre of the sphere rrespectively are

zero and $${Q \over {4\pi {\varepsilon _0}{R^2}}}$$

$${Q \over {4\pi {\varepsilon _0}R}}$$ and zero

$${Q \over {4\pi {\varepsilon _0}R}}$$ and $${Q \over {4\pi {\varepsilon _0}{R^2}}}$$

both are zero

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

A charge q is placed at the centre of the line joining two equal charges Q. The system of the three charges will be in equilibrium if q is equal to

$$-$$Q/4

Q/4

$$-$$Q/2

Q/2

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

An electric dipole of dipole moment p is aligned parallel to a uniform electric field E. The energy required to rotate the dipole by 90^o is

p² E

infinity

pE²

NEET 2013

MCQ (Single Correct Answer)

-1

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

maximum at C

same at all the three points A, B and C

maximum at A

maximum at B

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