Question

20x10²⁰electrons flow through a battery of 12V. How much energy is spent by the battery in the

process?​

Answer 1

Answer:

=3844.8 Watt

Explanation:

e = 1.602 * 10^-19C

n= 20 * 10^20

q(No.  of Coulomb) =

q = ne

q = 1.602 * 10^-19 * 20 *  10^20

q = 320.4 Coulomb

Ampere:- flow of one coulomb charge per seconds

q = it

i = 320.4 Ampere

P = VI

P = 12 * 320.4

P = 3844.8 Watt

[1 watt = 1 joules/second]