⚡Electrical Engineering MCQs
Electrical Engineering MCQs
499 MCQs481
The value of the capacitance depends upon the________________?
Avoltage applied
Bthickness of the capacitor plates
Cgeometry of the capacitor
Ddinsity of the capacitor plates
482
A 5 μF capacitor has a potential difference across its plates of 200 volts. The charge on the capacitor is____________?
A2.5 x 10-8 C
B10-5 C
C103 C
D4 x 103 C
483
Equivalent capacitance is greater than individual capacitances in_____________?
Aseries combination
Bparallel combination
Cboth series and parallel combinations
Dnone of above
484
The number of electrons in one coulomb charge is equal to_______________?
A6.2 x 1018
B1.6 x 1019
C6.2 x 1021
D1.6 x 10-27
485
SI unit of the permittivity of free space is________________?
ANm2C2
BN-1mC-2
CNmC-1
DN-1m-2C2
486
The metallic spheres A and B of radii 2m and 4m respectively carry the same charge 4 x 10 8C. If the spheres are connected by a copper wire_______________?
Acharge will flow from A to B
Bcharge will flow from B to A
Cno flow of charge will occur
Dboth a and b are possible
487
The electric charge of 100 °C is 13cm apart from another charge 16.9°C electric force between them is_____________?
A9x107N
B900N
C9x105N
D9x106N
488
Two charges are placed at a certain distance. If the magnitude of each charge is doubled the force will become_____________?
A1/4th of its original value
B1/8th of its original value
C4 times of its original value
D8 times of its original value
489
An electric field can deflect_______________?
ANeutrons
BX-rays
CBoth glass rod and silk acquire a negative charge
DNone
490
Electric flux linked with a surface will be maximum when____________?
AThe surface is held parallel to the electric field
BThe surface is held perpendicular to the electric field
CThe surface makes an angle of 45°with the field
DAll of the above