A5.00-a current runs through a 12-gauge copper wire (diameter 2.05 mm) and through a light bulb. copper has 8.5 * 1028 free electrons per cubic meter. (a) how many electrons pass through the light bulb each second

The correct answer is:  electrons/second

Explanation:

5A current is passing through the copper wire and the light bulb; it means that 5 Coulombs of charge per second is passing through the wire (as current = coulombs/second). To find the electrons per second, the following formula is used:

Electrons per second =

electrons per second

Explanation:

As we know that electric current is defined as rate of flow of electric charge

so here we will have

here we know that

now from above equation

here we know

= number of electrons passing per second

e = charge of an electron

i = 5.00 Ampere

now from above equation we have

so above is the total number of electrons passing through wire per second

the answer would be c. motion and direction

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explanation: