Question

How many electrons strike the screen each second?

Answer 1

In this case, the number of electrons that strike the screen each second is
`5.0 x 10^-4 C`.

Step-by-step explanation:

To calculate the number of electrons that strike the screen each second, we need to use the concept of current. The current is given as
`0.500 mA`(milliamperes).

We can use the formula for current, which is
`I = Q/t`, where I is the current in amperes, Q is the charge in coulombs, and t is the time in seconds. Rearranging the formula, we have
`Q = I*t`.

Substituting the given values, we have
`Q = 0.500 mA * 1` second. To convert milliamperes to amperes, we divide by 1000, so we have
`I = 0.0005 A`.

Calculating Q, we have
`Q = 0.0005 A * 1 second = 0.0005 C (coulombs)`. Therefore,
`0.0005 coulombs` of charge, which is equivalent to

`5.0 x 10^-4 C` target in 1 second.