Question

The force a magnet exerts on another magnet, on iron or a similar metal, or on moving charges is
an electric force.
a magnetic force.
proportional to the charge of the magnet.
proportional to the mass of the magnet.

f the current in a wire is directed upward, what is the direction of the magnetic field produced by the current?
counterclockwise in the horizontal plane
clockwise in the horizontal plane
in the same direction as the current
in the opposite direction to the current

Answer 1

1. Obviously magnetic force
2. Acc to Right Hand Thumb Rule if ur thumb points in the direction of current then the direction in which u curl ur fingers give u the direction of Magnetic Field