Physics – Class 12 Mock Test 2

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Question 1 of 10

1. Identify the simplest and the most widely used capacitor among the following.

Parallel plate capacitor

Spherical Capacitor

Electrolytic capacitor

Cylindrical capacitor

Question 1 of 10

Question 2 of 10

2. What is the induced dipole moment developed per unit volume of a dielectric when placed in an external electric field called?

Relative permittivity

Electric susceptibility

Polarisation susceptibility

Polarisation density

Question 2 of 10

Question 3 of 10

3. Which of the following is an example of a molecule whose centre of mass of positive and negative charges coincide each other?

CH₃OH

CO₂

NH₃

Question 3 of 10

Question 4 of 10

4. Electrostatic potential energy can be negative.

True

False

Question 4 of 10

Question 5 of 10

5. By performing a set of experiments, a scientist found that the electric field between two points A and B is zero. What can he conclude regarding the potential of the two points?

V_A=0, V_B=0

V_A+V_B

V_A>V_B

V_A=V_B

Question 5 of 10

Question 6 of 10

6. Gauss’s Law cannot be applied in ________

Solid sphere

Unbounded surface

Hollow sphere

Cube

Question 6 of 10

Question 7 of 10

7. Electric field and electric field intensity are related to electric potential.

False

True

Question 7 of 10

Question 8 of 10

8. Gauss's Law cannot be applied in a medium that has relative permittivity greater than 1. This statement is ________

True

False

Question 8 of 10

Question 9 of 10

9. What is the dimensional formula of capacitance of a capacitor?

M^-1L^-2T⁶

M¹L²T^-4I^-2

M^-1L^-2T⁴I²

M^-2L²T⁴

Question 9 of 10

Question 10 of 10

10. A charge is distributed along an infinite curved line in space with linear charge distribution λ. What will be the amount of force on a point charge q kept at a certain distance from the line?

q∫\(\frac {\lambda}{r^2}\)

q∫\(\frac {\lambda}{r^2}\hat{r}\)dl

q∫\(\frac {\lambda}{r^2}\hat{r}\)dr

q∫\(\frac {\lambda}{r^3}\hat{r}\)dl

Question 10 of 10