Question

2. Which of the following is not a source of
electric current?
(a) Battery
(b) Cell
(c) Conductor
(d) Mains
3. Which of the following materials is generally
used as the core of an electromagnet?
(a) Steel
(b) Iron
(c) Alnico
(d) Magnetite
4. Which of the following is not true of magnetic
lines of force?
(a) They do not intersect each other.
(b) They are continuous curves.
(c) They are crowded together where the
magnetic field is weak.
(d) They go from the north pole to the south
pole outside a magnet and from the south
pole to the north pole inside it.​

Answer 1

Answer:

2. (c)

3. (d)

4. (c)

Explanation:

Hope this helps you

Answer 2

Answer:

2. Which of the following is not a source of

electric current?

(a) Battery

(b) Cell

(c) Conductor

(d) Mains ✅✅

3. Which of the following materials is generally

used as the core of an electromagnet?

(a) Steel

(b) Iron

(c) Alnico

(d) Magnetite✅✅

4. Which of the following is not true of magnetic

lines of force?

(a) They do not intersect each other.✅✅

(b) They are continuous curves.

(c) They are crowded together where the

magnetic field is weak.

(d) They go from the north pole to the south

pole outside a magnet and from the south

pole to the north pole inside it.