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Calculate the number of electrons passing a point in the wire in 1 min when the current is 12 mA for 25s

User Cory Loken
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Final answer:

To calculate the number of electrons passing a point in a wire, use the formula: No. of electrons = (current x time) / (charge of an electron). Given the current of 12 mA for 25 s, the number of electrons passing the point in 1 min is approximately 1.875 x 10^19 electrons.

Step-by-step explanation:

The number of electrons passing a point in a wire can be calculated using the formula:

No. of electrons = (current x time) / (charge of an electron)

Given that the current is 12 mA and the time is 25 s, we can substitute these values into the formula:

No. of electrons = (12 mA x 25 s) / (1.6 x 10^-19 C)

Simplifying the calculation, we find that the number of electrons passing the point in the wire in 1 min is approximately 1.875 x 10^19 electrons.

User GCoh
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