Question

Fill in the following blanks with suitable words
(a) The lines of ........... round a straight current-carrying conductor are in the shape of ...........
(b) For a current-carrying solenoid, the magnetic field is like that of a ...........
(c) The magnetic effect of a coil can be increased by increasing the number of ........... increasing the ........... or inserting an ........... core.
(d) If a coil is viewed from one end and the current flows in an anticlockwise direction, then this end is a ........... pole.
(e) If a coil is viewed from one end, and the current flows in a clockwise direction, then this end is a ........... pole.

Answer 1

a) magnetic field, concentric circles

b) bar magnet

c) turns, magnetic field, iron

d) north

e) south

Answer 2

Answer:

(a) magnetic field; concentric circles

(b) bar magnet

(c) turns; current; iron

(d) north

(e) south.