AIPMT 2014 | Electrostatics Question 34 | 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

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 (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

MCQ (Single Correct Answer)

-1

Two pith balls carrying equal charges are suspended from a common point by strings of equal length, the equilibrium separation between them is r. Now the strings are rigidly clamped at half the height. The equilibrium separation between the balls now become

NEET 2013 Physics - Electrostatics Question 60 English

NEET 2013 Physics - Electrostatics Question 60 English

$$\left( {{{2r} \over {\sqrt 3 }}} \right)$$

$$\left( {{{2r} \over 3}} \right)$$

$${\left( {{1 \over {\sqrt 2 }}} \right)^2}$$

$$\left( {{r \over {\root 3 \of 2 }}} \right)$$

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