Question

Page No.
2. a current o.1 A passes through a
Copper wire For 40sec find the
Charge flowing through the cross
section of the wire during this time
the no. of electrons carrying it
c The charge
on an electron q=1.6×10-19​

Answer 1

I=0.1A

T=40sec

Current = charge of electron/time taken to flow

0.1=n(1.6×10‐¹⁹)/40

n=0.1×40/1.6×10‐¹⁹

n=4/1.6×10‐¹⁹

n=1×10×10¹⁹/4

n=5×10×10¹⁸/2

n=5×5×10¹⁸

n=25×10¹⁸electrons

OR

n=2.5×10¹⁹electrons

HERE IS UR ANSWER ••••

HOPE IT HELPS••••

GOID MORNING

HAVE A BEAUTIFUL DAY ♥︎♥︎