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
The electric field at a point situated at a distance d from straight charged conductor is____________?
A. Proportional to d
B. Inversely proportional to d
C. Inversely proportional to d
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
For making a capacitor, it is better to select a dielectric having___________?
A. Low permittivity
B. High permittivity
C. Permittivity same as that of air
D. Permittivity slightly more than that of air
In alkaline cell the electrolyte is_____________?
A. Dilute sulphuric acid
B. Concentrated sulphuric acid
C. Naoh
D. Koh
A constant-voltage generator has___________?
A. Minimum efficiency
B. Minimum current capacity
C. Low internal resistance
D. High internal resistance