Electrostatics Test

Result

Electrostatics Test - 44

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

An electron is moving towards x-axis. An electric field is along y-direction then path of electron is

A
Circular

B
Elliptical

C
Parabola

D
None of these
Question 2
4 / -1

At a point 20 cm from the centre of a uniformly charged dielectric sphere of radius 20 cm, the electric field is 100 V/m. The electric field at 3 cm from the centre of the sphere will be

A
150 V/m

B
125 V/m

C
120 V/m

D
Zero

Solution
Question 3
4 / -1

The dimension of (1/2)ɛ₀E²(ɛ₀ : permittivity of free space; E: electric field) is

A
MLT^–1

B
ML²T^–2

C
ML^–1T^–2

D
ML²T^–1

Solution
Question 4
4 / -1

In the rectangle, shown below, the two corners have charges q₁ = –5 µC and q₂ = +2.0 µC. The work done in moving a charge + 3.0 µC from B to A is (take 1/4 πɛ₀ =10¹⁰ N-m² / C²)

A
2.8 J

B
3.5 J

C
4.5 J

D
5.5 J

Solution
Question 5
4 / -1

A cube of a metal is given a positive charge Q. For the above system, which of the following statements is true?

A
Electric potential at the surface of the cube is zero

B
Electric potential within the cube is zero

C
Electric field is normal to the surface of the cube

D
Electric field varies within the cube
Question 6
4 / -1

A spherical conductor of radius 2 m is charged to a potential of 120 V. It is now placed inside another hollow spherical conductor of radius 6 m. Calculate the potential to which the bigger sphere would be raised.

A
20 V

B
60 V

C
80 V

D
40 V

Solution
Question 7
4 / -1

A charge (–q) and another charge (+Q) are kept at two points A and B respectively. Keeping the charge (+Q) fixed at B, the charge (–q) at A is moved to another point C such that ABC forms an equilateral triangle of side l. The net work done in moving the charge (–q) is

A

B

C

D
Zero

Solution
Question 8
4 / -1

A particle of mass \'m\' and charge \'q\' is accelerated through a potential difference of V volt. its energy will be

A
qV

B
mqV

C

D

Solution
Question 9
4 / -1

4 point charges each +q is placed on the circumference of a circle of diameter 2d in such a way that they form a square. The potential at the centre is

A
0

B

C

D

Solution
Question 10
4 / -1

Consider two point charges of equal magnitude and opposite sign separated by a certain distance. The neutral point between them

A
Does not exist

B
Will be in mid-way between them

C
Lies on the perpendicular bisector of the line joining the two

D
Will be closer to the negative charge