A series circuit is connected as shown. If the current flows from north to south. the north pole of the compass needle would move towards the east.
1. What will happen if cell connections are replaced?
a. Direction of current through the copper wire will be changed
b. Direction of current through the copper wire will be same
c. Direction of air through the copper wire will be changed
d. Direction of air through the copper wire will be same
2. What will be the new direction of current?
a. West to east
b. East to west
c. North to south
d. South to north
3. Will the needle of compass get deflected also?
a. Yes
b. No
4. In which direction will the needle move if cell connections are replaced?
a. East
b. West
c. North
d. South
5. What does the reversing of directions in the above questions imply?
a. It means that the direction of velocity produced by the electric current is also reversed.
b. It means that the direction of magnetic field produced by the electric current is also reversed.
c. It means that the direction of motion produced by the electric current is intersecting.
d. It means that the direction of magnetic field produced by the electric current has no effect.