Electrostatics Test

Result

Electrostatics Test - 93

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

If 10¹⁰ electrons are acquired by a body every second, the time required for the body to get a total charge of1 C will be

A
Two hours

B
Two days

C
Two years

D
20 years

Solution
Question 2
4 / -1

Four point charges –Q, –q, 2q and 2Q are placed, one at each corner of the square. The relation between Q and q for which the potential at the centre of thesquare is Zero is

A

B

C

D

Solution
Question 3
4 / -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

A

B

C

D

Solution
Question 4
4 / -1

Two small spheres each carrying a charge q are placed r metre apart. If one of the sphere is taken around the other one in a circular path of radius r, the work donewill be equal to

A
Force between them × r

B
Force between them × 2 πr

C
Force between them /2 πr

D
Zero
Question 5
4 / -1

Two charged spheres of radii 10 cm and 15 cm are connected by a thin wire. No charge will flow, if they have

A
The same charge on each

B
The same potential

C
The same energy

D
The same field on their surfaces
Question 6
4 / -1

Theelectric potential V at any point O(x,y, z all in metres) in space is given by V = 4x² volt. The electric field at the point(1m, 0, 2m) in volt / metre is

A
8 along negative X-axis

B
8 along positive X-axis

C
16 along negative X-axis

D
16 along positive Z-axis

Solution
Question 7
4 / -1

A hollow metal sphere of radius 5 cm is charged so that the potential on its surface is 10V. The potential at the centre of the sphere is

A
0V

B
10V

C
Same as at point 5 cm away from the surface

D
Same as at point 25 cm away from the surface
Question 8
4 / -1

If a unit positive charge is taken from one point to another over an equipotential surface, then

A
Work is done on the charge

B
Work is done by the charge

C
Work done is constant

D
No work is done
Question 9
4 / -1

Electric lines of force about negative point charge are

A
Circular, anticlockwise

B
Circular, clockwise

C
Radial, inward

D
Radial, outward

Solution
Question 10
4 / -1

A uniform electric field having a magnitude E, and direction along the positive X-axis exists. If the potential V is zero at x = 0, then its value at X = +x will be

A
V_(x) = +xE₀

B
V_x = – xE₀

C
V_x = +x²E₀

D
V_x = – x²E₀

Solution