Electrostatics (NEET Physics): Questions 17 - 20 of 109

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Question number: 17

» Electrostatics » Equipotential Surfaces

MCQ▾

Question

In the figure the charge Q is at the center of the circle. Work done by electrostatic force on q is maximum, when another charge q is taken from point P to ________. (Consider both the charges to be positive)

Circle having Q charge at the center

Circle Having Q Charge at the Center

In figure the charge Q is at the center of the circle. Points P, L, M, N are on this equipotential circle and point K is at outside of the circle

Choices

Choice (4) Response

a.

K

b.

M

c.

L

d.

N

Question number: 18

» Electrostatics » Electric Field Lines

MCQ▾

Question

A charge particle is free to move in an electric field. It will travel

Choices

Choice (4) Response

a.

Always along a line of force

b.

Along a line of force, if its initial velocity is zero

c.

Along a line of force, if it has some initial velocity in the direction of an acute angle with the line of force

d.

All of the above

Question number: 19

» Electrostatics » Electrostatic Potential Energy

MCQ▾

Question

Charges -q, Q and -q are placed at equal distance on a straight line. If the total potential energy of the system of three charges is zero, then find the ratio Q/q.

Three charge system placed at equal distance

Three Charge System Placed at Equal Distance

Charges -q, Q and -q are placed at equal distance (r) on a straight line.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 20

» Electrostatics » Electric Field Due to a Point Charge

MCQ▾

Question

Two point charges Q and -3 Q are placed at some distance apart. If the electric field at the location of Q is E then, what will be at the locality of -3Q?

Choices

Choice (4) Response

a.

Equation

b.

-E

c.

Equation

d.

-3E

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