Search
.Management Sciences
Category: Electrostatics
A region around a stationary electric charge has__________?
A. an electric field
B. a magnetic field
C. both A. and (6)
D. none of the above
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
If a third equal and similar charge is placed between two equal and similar charges, then this third charge will_____________?
A. move out of the field of influence of the two charges
B. remain in stable equilibrium
C. not be in equilibrium
D. be in unstable equilibrium
Dielectric strength of medium____________?
A. increases with rise in temperature
B. increases with moisture content
C. is same for all insulating materials
D. none of the above
Which of the following expression is correct for electric field strength___________?
A. E = D/E
B. E = D2/t
C. E = jtD
D. E= nD2
In a non-uniform electric field a polar molecule will experience____________?
A. Net torque
B. Net force
C. both series and parallel combinations
D. zero
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
If the sheet of a bakelite is inserted between the plates of an air capacitor, the capacitance will__________?
A. decrease
B. increase
C. remains unchanged
D. become zero
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
Recent Comments