A current of 0.5A passes through a conductor for 2s. How many electrons flow through any cross section of the conductor during this interval ??
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Charge(Q) = Current(A) × time(s)
= 0.5 × 2
= 1.0 Coulomb.
Now
Q = ne
n = Q/e
= 1/ 1.6 x 10⁻¹⁹
= 6.25 x 10¹⁸
= 0.5 × 2
= 1.0 Coulomb.
Now
Q = ne
n = Q/e
= 1/ 1.6 x 10⁻¹⁹
= 6.25 x 10¹⁸
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