Question

hundred joules of heat is produced per second in a 4 ohm resistance what is the potential difference across a resistance

Answer 1

According to the relation, H=I²Rt, Current I is calculated, with the help of which P.d was determined​to be 20Volt

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