Question

(1)define the unit of current mean


(2)calculate the number of electrons constituting one coulomb of charge ​

Answer 1

Answer:

1. ampere

The SI unit of electric current is the ampere, or amp, which is the flow of electric charge across a surface at the rate of one coulomb per second. The ampere (symbol: A) is an SI base unit Electric current is measured using a device called an ammeter.

2. We know that the charge on an electron is negative and it is -1.6⨯10-19 coulomb. We need to calculate the number of electrons constituting one coulomb of charge. Total charge required for 1Coulomb. So 1 Columb of charge contains 6 × 1018 electrons.

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