Electric Current and Its Effects Class 7 Solutions of WORKSHEET

1: (a) positive terminal of one cell is connected to the negative terminal of the next cell

2: (c) Can be placed anywhere in the circuit

3: (d) All of these

4: (b) element

5: (d) all of these

6: (b) ISI

7: (a) deflects a magnetic needle placed near it

8: (c) There is a minimum limit on the current which can safely flow in the electric circuits.

9: (b) (ii) and (iii) are correct

10: (d) We should never turn the switch in ON position.

Match the following:

Column A	Column B
(i) Switch	(f) Turns the circuit ON and OFF
(ii) Battery	(e) Supplies current to the circuit
(iii) Element	(a) Coil of wire which heats up when electricity current is supplied
(iv) Filament	(h) Wire in the bulb which glows
(v) Fuse	(b) Blows off, if the current exceeds safe limit
(vi) MCBs	(g) Turn OFF if current exceeds safe limit
(vii) CFL	(c) Consumes less energy than a bulb
(viii) ISI	(d) Mark that ensures that the electric appliance is safe to handle