(a) What are magnetic field lines ? How is the direction of magnetic field at a point determined ? Draw the…
(a) What are magnetic field lines ? How is the direction of magnetic field at a point determined ? Draw the pattern of magnetic field lines of the magnetic field produced by a current carrying circular loop. Mark on it the direction of (i) current and (ii) magnetic field lines.
Name the two factors on which the magnitude of the magnetic field due to a current carrying coil depends.
Solution
(a) Magnetic field lines are the imaginary lines around the magnet
Magnetic field line directions at a point are determined by placing a small compass needle.
Figure of magnetic field produced by a current carrying circular coil (1 Mark for each labelling)
Amount of the electric current flowing through it.
The number of turns in the circular coil
The radius of circular coil
(Any two)