In case of two identical charges placed certain distance apart, the electric field lines are:
Straight lines
Sine curves
Curved
Both (A) and (B)
None of these
The pointer of a magnetic compass:
Is affected only by permanent magnets
Align itself parallel to the applied magnetic field
Vibrates in the magnetic field of the current
Aligns itself perpendicular to the magnetic field
Electrostatics is the branch of physics which deals with the study of electro charges:
At rest
At rest under the action of electric forces
In motion under the action of electric forces
In motion
At rest under the action of nuclear forces
Always accompanied
Sometimes accompanied
Never accompanied