For how long should a flow of $10^{19}$ electrons be maintained between two points A and B to have a constant current of 8A between them?

8x10^-19sec

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5 sec

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1.6 x 10¹⁹ sec

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0.2 sec

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Solution

The correct option is D
0.2 sec

$q = n e, I = \frac{q}{t} H e n c e, I = \frac{n e}{t} S o t = \frac{n e}{I} = 10^{19} \times 1.6 \times \frac{10^{- 19}}{8}$
T = 0.2 sec

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Similar questions

How long should a flow of $10^{19}$ electrons be maintained between two points A and B to have a constant current of 8 A flowing between them?

For what time period should a flow of $10^{19}$ electrons be maintained between two points A and B to have a constant current of $8 A$ between them?

The charge of an electron is known to be $1.6 \times 10^{- 19} C$ . In a circuit, the current flowing is $1 A$ . How many electrons will be flowing through the circuit per second?

Q. In how much time (in seconds) should a charge of

10 C

flow between the two terminals so as to maintain a constant current of

100 A

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For how long should a flow of 1019 electrons be maintained between two points A and B to have a constant current of 8A between them?

The correct option is D 0.2 secq=ne,I=qtHence,I=netSo t=neI=1019×1.6×10−198 T = 0.2 sec

For how long should a flow of $10^{19}$ electrons be maintained between two points A and B to have a constant current of 8A between them?

The correct option is D
0.2 sec

$q = n e, I = \frac{q}{t} H e n c e, I = \frac{n e}{t} S o t = \frac{n e}{I} = 10^{19} \times 1.6 \times \frac{10^{- 19}}{8}$
T = 0.2 sec