Electrostatics Test

Result

Electrostatics Test - 37

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

The electric field inside a spherical shell of uniform surface charge density is

A
Zero

B
Constant, less than zero

C
Directly proportional to the distance from the centre

D
None of the above
Question 2
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 3
4 / -1

A

B

C

D
900 volt

Solution
Question 4
4 / -1

A uniform electric field having a magnitude E₀ 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
Question 5
4 / -1

Three charges 2q, – q, – q are located at the vertices of an equilateral triangle. At the centre of the triangle

A
The field is zero but potential is non-zero

B
The field is non-zero but potential is zero

C
Both field and potential are zero

D
Both field and potential are non-zero

Solution
Question 6
4 / -1

Figure shows the electric lines of force emerging from a charged body. If the electric field at A and B areEA and EB respectively and if the displacement between A and B is r, then

A

B

C

D
Question 7
4 / -1

In the electric field of a point charge q, a certain charge is carried from point A to B, C, D and E. Then, the work done

A
Is least along the path AB

B
Is least along the path AD

C
Is zero along all the paths AB, AC, AD and AE

D
Is least along AE
Question 8
4 / -1

An electron and a proton are in a uniform electric field, the ratio of their accelerations will be

A
Zero

B
Unity

C
The ratio of the masses of proton and electron

D
The ratio of the masses of electron and proton

Solution
Question 9
4 / -1

Two parallel plates have equal and opposite charge. When the space between them is evacuated, the electric field between the plates is 2 × 10⁵ V/m. When the space is filled with dielectric, the electric field becomes 1 × 10⁵ V/m. The dielectric constant of the dielectric material

A
1/2

B
1

C
2

D
3

Solution
Question 10
4 / -1

The insulation property of air breaks down at E = 3 × 10⁶ volt / metre. The maximum charge that can be given to a sphere of diameter 5 m is approximately (in coulombs)

A
2 × 10^–2

B
2 × 10^–3

C
2 × 10^–4

D
2 × 10^–5

Solution