Physics
Related Questions
The diagram in figure shows three lamps and three switches 1, 2 and 3 connected with two cells.
(a) Name the switch/switches to be closed so as to light all three lamps.
(b) How are then the lamps connected : in series or in parallel.
How does the colour code of wires in a cable help in house wiring?
Which of the cables, one rated 5 A and the other rated 15 A will be of thicker wire? Give a reason for your answer.
Why is it necessary to have an earth wire installed in a power circuit, but not in a lighting circuit?