Electric Current and Its Effect Worksheet-3

Electric Current and Its Effect Worksheet-3

1. Which of the following is preferred to make an electromagnet?

(a) Steel

(b) Plastic

(c) Stainless steel

(d) Soft iron

2. A current carrying conductor

(a) Experiences a force when it is in a magnetic field

(b) Does not experience a force when it is in magnetic field

(c) Experiences the force only when the field is electromagnetic in nature

(d) None of these

3. A battery is a group of

(a) Only two cells                         (b) Two or more cells

(c) Only single cell                       (d) All of these

4. When a magnetic compass is brought near a current carrying wire

(a) It will lose its magnetism

(b) It deflects the magnetic needle

(c) No effect on the compass occurs

(d) It will hold fast in East- West direction

5. Which of these does not use the magnetic effect of electric current?

(a)

(b)

(c)

(d) None of these

Answer Key:

1. (d)
2. (a)
3. (b)
4. (b)
5. (c)