Question

A wire carries a curret of 1A how many electrons pass a given point in the wire in 1 second

Answer 1

Answer:

1 culamb current flow through a circut

Answer 2

The number of electrons pass a given point in the wire in 1 sec is 6.25 × 10^18  electrons.

Given: A wire carries a current of 1 A

To Find: The number of electrons pass a given point in the wire in 1 sec

Solution:

• When 1 coulomb (C) charge passes through any cross section or given point in a wire, the current passing through it is 1 ampere (A).
• We know that the charge of electron = 1.6 × 10^-19 C.

  Suppose there are 'n' electrons in 1 C charge, so we can say that;

                         n × e = 1 C                            [ where e = 1.6 × 10^-19 C ]

                  ⇒    n = 1 / e

                  ⇒    n = 1 / 1.6 × 10^-19

                  ⇒    n  = 6.25 × 10^18

Hence, the number of electrons pass a given point in the wire in 1 sec is 6.25 × 10^18  electrons.

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