Page 1 - HA
P. 1
Objective Questions:
1. The nature of magnetic field line passing through the centre of current
carrying circular loop is
(a) circular
(b) ellipse
(c) parabolic
(d) straight line
2. The direction of magnetic field line passing through the centre of current
carrying circular loop is determined by
(a) SNOW Rule
(b) Ampere’s swimming rule
(c) Clock face rule
(d) Right hand thumb rule
3. The polarities developed in a current carrying circular loop is determined
by
(a) SNOW Rule
(b) Ampere’s swimming rule
(c) Clock face rule
(d) Right hand thumb rule
4. The strength of magnetic field due to a circular loop is
(a) Directly proportional to the current
(b) inversely proportional to the current
(c) Directly proportional to the radius of the loop
(d) inversely proportional to the radius of the loop
Subjective Questions:
1. If the circular coil has n turns, the field produced is n times as large
as that produced by a single turn. Justify it.
2. Is the magnetic field strength more for a straight current carrying
conductor or for a circular loop?
3. Why is a magnetic field more in circular loops than in a
straight current carrying wire?
4. State clock face rule.
Activity-4
Magnetic field pattern produced due to a circular loop.
Materials Required:
Battery, Switch, connecting wire, rheostat, cardboard, iron fillings, compass needle
Observation:
