Question

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

Answer 1

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