Question

A cell is connected to a 4 ohm resistance because of which heat is 10 J produced per second due to current flowing through it. Obtain the potential difference applied across the resistance

Answer 1

Answer:

V = 6.32 volt.

Explanation:

Heat energy = V²t /R

H/s = V²/R = Power

Heat energy / second = 10 J/s = 10 Watts.

Power = V²/R.

10 = V²/4

V² = 40

V = √40 = 2√10 volt.

V= 3.16 * 2 = 6.32 volt.

Hope my answer helped you..

If you really think that my answer helped you, Please mark my answer as the BRAINLIEST!!!!

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