PH-2126

Electric charge

Physics · Secondary 4 · Hard · Electric charge

A current of

2.5 \times 10^{-3}\,\text{A}

flows in a beam of electrons. Each electron has charge

1.6 \times 10^{-19}\,\text{C}

.

Using

I = Q/t

, how many electrons pass a point in the beam each second?

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