A. imaginary
B. physically existing every where
C. physically existing near the charges
D. depends upon case
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 - 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 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 - The lines of force due to charged particles are_________?
A. always straight
B. always curved
C. sometimes curved
D. none of the above - at a point may be defined as equal to the lines of force passing normally through a unit cross section at that point ?
A. Electric intensity
B. Magnetic flux density
C. Electric flux
D. None of the above - A field line and an equipotential surface are____________?
A. always parallel
B. always at 90°
C. inclined at any angle 0
D. none of the above - The units of capacitance are____________?
A. volts/coulomb
B. coulombs/volt
C. ohms
D. henry/Wb - The force between two charges is 120 N. If the distance between the charges is doubled, the force will be________________?
A. 60 N
B. 30 N
C. 40 N
D. 15 N - 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 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
