A. always straight
B. always curved
C. sometimes curved
D. none of the above
Related Mcqs:
- The phenomenon of an uncharged body getting charged merely by the nearness of a charged body is known as____________?
A. pholoelectric effect
B. chemical effect
C. magnetic effect
D. induction - The ability of charged bodies to exert force on 6ne another is attributed to the existence of____________?
A. electrons
B. protons
C. neutrons
D. electric field - 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 - The electric lines of force are____________?
A. imaginary
B. physically existing every where
C. physically existing near the charges
D. depends upon case - 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 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 - Two plates of a parallel plate capacitor after being charged from a constant voltage source are separated apart by means of insulated handles, then the____________?
A. Voltage across the plates increases
B. voltage across the plates decreases
C. charge on the capacitor decreases
D. charge on the capacitor increases - An uncharged conductor is placed near a charged conductor, then_____________?
A. the uncharged conductor gets charged by conduction
B. the uncharged conductor gets charged by induction and then attracted towards the charging body
C. the uncharged conductor is attracted first and then charged by induction
D. it remains as such - Energy stored in the electric field of a capacitor C when charged from a D.C source of voltage V is equal to joules_______________?
A. CV2
B. C2V
C. CV2
D. CV - If metallic conductor is charged negatively then its weight______________?
A. Remains same
B. First increases then decreases
C. Decreases then increases
D. Increases for a while
