A. 1
B. 10
C. 100
D. 1000
Related Mcqs:
- 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 - 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 - SI unit of the permittivity of free space is________________?
A. Nm2C2
B. N-1mC-2
C. NmC-1
D. N-1m-2C2 - 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 - The relative permittivity has the following units__________?
A. F/m
B. m/F
C. Wb/m
D. no units - Permittivity is expressed in_____________?
A. Farad/sq-m
B. Farad/meter
C. Weber/meter
D. Weber/sq-m - The capacitance C is charged through a resistance R. The time constant of the charging circuit is given by__________?
A. CIR
B. 1/RC
C. RC
D. RIC - If free space between the plates of a capacitor is replaced by a dielectric_____________?
A. The potential difference remains constant capacittance and energy stored increases
B. The potential difference remains constant capacittance decreases and energy increases
C. The potential difference decreases but both capacitance and energy increase
D. both potential difference and capacitance decrease but energy increases - 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 - The unit of dielectric strength is given by___________?
A. V/m
B. V2/m
C. m/V
D. m/V2
