A TV set shoots out a beam of electrons. The beam current is 10 A. How many electrons strike the TV screen in a minute?

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Solution

The correct option is A

Total charge, q = It = $10 A \times 60 s$ = 600 C

We know that, q = ne

So no. of electrons, n = $\frac{q}{e}$ = $\frac{600}{1.6 \times 10^{- 19}}$ = $375 \times 10^{19}$

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A TV set shoots out a beam of electrons. The beam current is 10 A. How many electrons strike the TV screen in a minute?

The correct option is A Total charge, q = It = 10A×60s = 600 C We know that, q = ne So no. of electrons, n = qe = 6001.6×10−19 = 375×1019

The correct option is A

Total charge, q = It = $10 A \times 60 s$ = 600 C

We know that, q = ne

So no. of electrons, n = $\frac{q}{e}$ = $\frac{600}{1.6 \times 10^{- 19}}$ = $375 \times 10^{19}$