15. Electric power is the rate at which an appliance converts electric energy into other forms of energy. Electric y2
power is given by, P= VI = PR-
R
The given figure shows four bulbs 1, 2, 3 and 4, consume same power. The resistance of bulb 1 is 36 Q.
(1) What is the resistance of the bulb 3?
(a) 402
(b) 902
(c) 18
(d) 120
(11) What is the resistance of bulb 4?
(a) 422
(b) 80
(c) 999
(d) 182
(18) If power of each bulb is 4 W, then the total current flowing through the circuit is
(a) 1A
(b) 2 A
(c) 4A
(d) 12 A
(lv) What is the equivalent resistance of the circuit?
(a) 122
(b) 8
(c) 182
(d) 1602