Question

Two resistors R and 2R are connected in a circuit
as shown in the figure above. If H1 and H, are
heat developed in R and 2R respectively in time
t, then H1:H, is equal to
[2008(A)
(i) 1:4
(ii) 1:2
(iii) 2:1
(iv) 4:1​

Answer 1

Explanation:

H = I²RT

H Directly proportional to R

therefore

H1/H2 = R1/R2

H1/H2 = 1/2

Answer 2

Answer:

iii) is correct 2:1. use formula v^2t/ R to calculate. It's very simple. Plzz try it yourself also