Question

1.
If a resistance R, is connected to a source of e.m.f. then
the power expended is P. If an additional resistance R second
is connected in series with R, then power expended in
R, will be
(1) P
(2) less then P
(3) more than P
(4) zero​

Answer 1

Answer:

3 it is more than p..

as I think

Answer 2

Answer:

it's correct option is 2[ less then p ]

Explanation:

equivalent resistance in balanced condition = (P+Q) (R+S)

                                                                               P+Q+R+S

IF  p by q is smaller than r by s then vb is greater than vd and current will flow from bto d