A. 1/4IIɛ q/r
B. q/ɛ0
C. 1/4IIɛ0. q/r2
D. 4IIɛ0
Related Mcqs:
- The electric charge of 100 °C is 13cm apart from another charge 16.9°C electric force between them is_____________?
A. 9x107N
B. 900N
C. 9x105N
D. 9x106N - The direction of electric field due +0 positive charge is ___________?
A. away from the charge
B. towards the charge
C. both A. and (6)
D. none of the above - 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 - Electric flux linked with a surface will be maximum when____________?
A. The surface is held parallel to the electric field
B. The surface is held perpendicular to the electric field
C. The surface makes an angle of 45°with the field
D. All of the above - “The total electric flux through any closed surface surrounding charges is equal to the amount oflcharge enclosed”. The above statement is associated with____________?
A. Coulomb’s square law
B. Gauss’s law
C. Maxwell’s first law
D. Maxwell’s second law - The number of Faraday tubes of flux passing through a surface in an electric field is called____________?
A. electric flux
B. electric flux density
C. magnetic flux density
D. electric charge density - An electric current induced within the body of a conductor when that conductor either moves through a non uniform magnetic field or in a region where there is a change in magnetic flux is called_____________?
A. Induced current
B. Eddy current
C. Back emf
D. None of the above - An electric charge at rest produces_______________?
A. only a magnetic field
B. only an electric field
C. neither electric field nor magnetic field
D. both electric and magnetic fields - Electric intensity at infinite distance from the point charge is_____________?
A. zero
B. infinite
C. positive
D. negative - Electric intensity at any point in an electric field is equal to the at that point?
A. electric flux
B. magnetic flux density
C. potential gradient
D. none of the above
