Electrostatics (AIIMS Physics): Questions 30 - 33 of 36

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Question number: 30

» Electrostatics » Electric Field Due to a Dipole

Appeared in Year: 1997

MCQ▾

Question

The electric dipole is placed along the x - axis at the origin O. A point P is at a distance of 20cm from this origin such that OP makes an angle 60° with the x - axis. If the electric field at P makes an angle θ with the x - axis, the value of θ would be – [MP PMT]

Choices

Choice (4) Response
a.

π3

b.

tan1(32)

c.

2π3

d.

π3+tan1(32)

Question number: 31

» Electrostatics » Electric Potential

Appeared in Year: 1993

MCQ▾

Question

Two charges 4×108C and 6×108C are located at A and B separated by 50cm . The distance of the point from A on line AB at which the electric potential is zero is given by – [MP PMT]

Choices

Choice (4) Response
a.

40cm

b.

30cm

c.

20cm

d.

10 cm

Question number: 32

» Electrostatics » Forces Between Two Point Charges

Appeared in Year: 2004

MCQ▾

Question

A charged oil drop is suspended in a uniform field of 3×104Vm so that it neither falls nor rises. The charge on the drop will be –

(Take the mass of the charge =9.9×1015kg and g=10ms2 ) (AIEEE)

Choices

Choice (4) Response
a.

4.8×1018C

b.

1.6×1018C

c.

3.2×1018C

d.

3.3×1018C

Question number: 33

» Electrostatics » Gauss's Law

Appeared in Year: 2001

MCQ▾

Question

A cube of metal is given a charge (+Q) , which of the following statements is true: [MP PET]

Choices

Choice (4) Response
a.

Electric field is normal to the surface of the cube

b.

Potential within the cube is zero

c.

Electric field varies within the cube

d.

Potential at the surface of cube is zero

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