Question

1. A piece of wire of resistance Ris cut into five equal parts. These parts are then
connected in parallel. If the equivalent resistance of this combination is R. then the
ratio R/R'is
(a) 1/25
(b) 1/5
2. Which of the following terms does not represent electrical power in a circuit?
(c) 5
(d) 25
(a) FR
(b) IR
(c) VI
(d) V/R
3. An electric bulb is rated 220 V and 100 W. When it is operated on 110 V, the
power consumed will be
(a) 100 W
(b) 75 W
(c) 50 W
(d) 25 W
4. Two conducting wires of the same material and of equal lengths and equal diameters
are first connected in series and then parallel in a circuit across the same potential
difference. The ratio of heat produced in series and parallel combinations would be
(a) 1:2
(b) 2:1
(c) 1:4
(d) 4:1​

Answer 1

Answer:1.b

2.a 3.d 4.c

Explanation: mark my answer brainliest