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Question

Physics Question on Electric Current

The number of electrons for one coulomb of charge is

A

6.25×10236.25 \times 10^{23}

B

6.25×10216.25 \times 10^{21}

C

6.25×10196.25 \times 10^{19}

D

6.25×10186.25 \times 10^{18}

Answer

6.25×10186.25 \times 10^{18}

Explanation

Solution

We know that 1e=1.6×10−19C1 e =1.6\times10^{-19} C ⇒1C=11.6×10−19=6.25×1018\Rightarrow 1C=\frac{1}{1.6\times10^{-19}}=6.25\times10^{18} electrons