The S-pole of a freely suspended magnet always points towards:
a) east
b) west
c) north
d) south
What is the effect on the bulb in a closed circuit when the copper wire is replaced by a plastic string?
a) the bulb becomes dim
b) the bulb becomes brighter
c) the bulb turn OFF
d) no effect on the bulb
What do thick lines represent in a circuit diagram
a) battery
b) switches
c) connecting wires
d) none of these
Which one of the following materials is a conductor?
a) cork
b) plastic comb
c) silver ring
d) none of these
Connecting wires are usually covered with plastic coating to:
a) make them look pretty
b) make the flow of current easier
c) make the electrical circuit safe
d) prevent the wastage of current
The magnetic force of the bar magnet is maximum:
a) at the poles
b) at the center
c) between a pole and center
d) all over the magnet
