Question

..R
100
Now, when V =110 V,
then power consumed,
V2 110x110
P =
= 25 W
484
R
4 Two conducting wires of 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:

my answers = 1: 4

Explanation:

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Answer 2

Answer:

Sol.        (d) 25

Solution:-

The piece of wire having resistance equal to R is cut into five equal parts.

Therefore, resistance of each of the part will be equal to 

When all parts are connected in parallel, then equivalent resistance is = R' as given

Therefore,