Newton Kumar Mittal ISC CLASS 12th Chapter 5 Electric Resistance and Ohm's law [NUMERICAL SOLUTION (part II)]

Electric resistance and ohm's law

             Numerical solution

1) A current of 20μA flows in a wire for 30 second.find the amount of a charge and the number of a free electron transferred through the wire.

Ans.1

2). A current of 1A is flowing through a conductor.---------------------------------------1). Per Seconds,2). In 1.6 second?

Ans.2

3). The cross- section area of wire.---------------------------------------------------------------------. What what will be the drift velocity of free electron for a current of 3.2 A in the wire?

Ans.3