Question

Find the number of electrons flowing through the conductor in 15 seconds, if 100 V of potential difference is applied through a conductor of resistance 20 Ohm. ​

Answer 1

Explanation:

Potential difference = 400V

Resistance = 200Ω

Current

R

V

=

200

400

= 2A

Current =

timetaken

chargeflown

2C = charge

1C=

1.6

10

19

e

2C=(

1.6

10

19

×2)electrons

8

1

×10

20

electrons

=10

17

×150

=1.5×10

19

electrons

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