A current of flows steadily through a conductor from point to point

PHYSICS · Multi-part · CBSE · Physics · Current Electricity · Current Electricity

Problem

A current of

0.25\,\text{A}

flows steadily through a conductor from point

A

to point

B

. Answer the following: (i) Calculate the total charge that passes a cross-section in

20\,\text{min}

. (ii) Estimate the number of electrons that cross the section in this time. (Take

e = 1.6\times10^{-19}\,\text{C}

.) (iii) State the sign (positive or negative) of the charge transferred and give a brief reason.