Question

A current of, 5A flows in a circuit for, 8S . How many electrons flow through the circuit in this time interval? Culculate the heat produced in the circuit, if the resistance of circuit is 2Ohm . The charge of one electron is 1.6× (10) 19C

Answer 1

Answer:

Explanation:

Total charge that flows in 2s is given by

q=It=5×2=10C

Now, charge on one electron is given by e=1.6×10

−19

C

N= number of electrons

q=Ne

⟹N=

e

q

​

⟹N=

1.6×10

−19

10

​

⟹N=6.25×10

19