Physics - Magnetism Question with Solution | TestHub

Electric current,$I=\frac{dQ}{dt}$

$dQ=Idt$

$t_1=0,t_2=1 h 30 \mathrm{m}\mathrm{i}\mathrm{n}$

$=90\min =90\times 60=\mathrm{5400 }\mathrm{s}$

Electric charge,$Q=I.t$

$=20\times \mathrm{5400 }\mathrm{C}$

$=10.8\times {10}^{\mathrm{4 }}\mathrm{C}$