Related Mcqs:

1. The potential gradient across the material of low permittivity is than across the material of high permittivity?

   A. smaller
   B. greater
   C. both (A) and (B)
   D. none of the above

2. The relative permittivity of free space is given by__________?

   A. 1
   B. 10
   C. 100
   D. 1000

3. The dielectric constant (relative permittivity) of glass is given by___________?

   A. 0.1 to 0.4
   B. 0.5 to 1.0
   C. 2.0 to 4.0
   D. 5 to 100

4. Permittivity is expressed in_____________?

   A. Farad/sq-m
   B. Farad/meter
   C. Weber/meter
   D. Weber/sq-m

5. The absolute permittivity of free space is given by_____________?

   A. 8.854 x 1(T9 F/m)
   B. 8.854 x 1(T10 F/m)
   C. 8.854 x KT11 F/m
   D. 8.854 x 10″12 F/m

6. SI unit of the permittivity of free space is________________?

   A. Nm2C2
   B. N-1mC-2
   C. NmC-1
   D. N-1m-2C2

7. Electric force between two point charges in air or vacuum is F. If we replace air or vacuum by an insulator (dielectric) of relative permitivity Cr the force between the charges will_______________?

   A. decrease
   B. increase
   C. remain constant
   D. depends upon composition of dielectric

8. Which of the following statement is true __________?

   A. The current in the discharging capacitor grows linearly
   B. The current in the dicharging capacitor grows exponentially
   C. The current in the discharging capacitor decays exponentially
   D. The current in the discharging capacitor decreases constantly

9. Which of the following expression is correct for electric field strength___________?

   A. E = D/E
   B. E = D2/t
   C. E = jtD
   D. E= nD2

10. Which of the following capacitors will have the least value of breakdown voltage________ ?

    A. Mica
    B. Paper
    C. Ceramic
    D. Electrolytic