Question

(2) A cell is connected to a 9 ohm resistance, because of which heat of 400 J is
produced per second due to current flouring through it. Obtain the potential difference
applied across the resistance.​

Answer 1

Answer:

V=60

Explanation:

Pls refer to the images

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Answer 2

Answer:

Explanation:

Given: R = 9 Ω

H = 400 J

t = 1 s

To find: V = ?

Formula: H = V2

t

R

Solution: H = V2

t

R

400 = V2 × 1

9

3600 = V2

V = √ 3600

V = 60 V