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Electrical Engineering Mcqs

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_______________?

Electrical Engineering Mcqs, Electrostatics /
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_______________?

A. charge will flow from A to B
B. charge will flow from B to A
C. no flow of charge will occur
D. both a and b are possible

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_______________? Read More »

Electrical Engineering Mcqs, Electrostatics

Two similar charges each of one coulomb placed in air one meter apart repel each other with a force______________?

Electrical Engineering Mcqs, Electrostatics /
Two similar charges each of one coulomb placed in air one meter apart repel each other with a force______________?

A. 9 x 109N
B. 9.2 x 104N
C. 9 x 109N
D. 9 x 107N

Two similar charges each of one coulomb placed in air one meter apart repel each other with a force______________? Read More »

Electrical Engineering Mcqs, Electrostatics

A closed surface contains two equal and opposite charges. The net electric flux from the surface will be________________?

Electrical Engineering Mcqs, Electrostatics /
A closed surface contains two equal and opposite charges. The net electric flux from the surface will be________________?

A. negative
B. positive
C. zero
D. data is insufficient

A closed surface contains two equal and opposite charges. The net electric flux from the surface will be________________? Read More »

Electrical Engineering Mcqs, Electrostatics

Electric intensity being a vector quantity always points_______________?

Electrical Engineering Mcqs, Electrostatics /
Electric intensity being a vector quantity always points_______________?

A. along the direction of force experienced by a unit positive charge
B. opposite to the direction of force experienced by a unit positive charge
C. perpendicular to the direction of force experienced by a uit positive charge
D. any of above

Electric intensity being a vector quantity always points_______________? Read More »

Electrical Engineering Mcqs, Electrostatics

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_______________?

Electrical Engineering Mcqs, Electrostatics /
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

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_______________? Read More »

Electrical Engineering Mcqs, Electrostatics

When we rub a glass rod with a silk cloth then________________?

Electrical Engineering Mcqs, Electrostatics /
When we rub a glass rod with a silk cloth then________________?

A. glass rod acquires negative charge while silk acquires positive charge
B. glass rod acquires positive charge while silk acquires negative charges
C. both glass rod and silk acquire negative charge
D. both glass rod and silk acquire positive charge

When we rub a glass rod with a silk cloth then________________? Read More »

Electrical Engineering Mcqs, Electrostatics

A coil of wire is arranged with its plane perpendicular to a uniform magnetic field o flux density B. when the radius of the coil increases from r1 to r2 in time Δt then what is the emf induced in the coil ?

Electrical Engineering Mcqs, Electromagnetic Induction /
A coil of wire is arranged with its plane perpendicular to a uniform magnetic field o flux density B. when the radius of the coil increases from r1 to r2 in time Δt then what is the emf induced in the coil ?

A. ωB/r22-r12/Δt
B. ωB(r2-r1)2/Δt
C. ωB(r22-r12)/Δt
D. ωB(r22+r12)/Δt

A coil of wire is arranged with its plane perpendicular to a uniform magnetic field o flux density B. when the radius of the coil increases from r1 to r2 in time Δt then what is the emf induced in the coil ? Read More »

Electrical Engineering Mcqs, Electromagnetic Induction