8 - Charge And Current

Question 1

Electric current

Answer 1

The rate of flow of negative charges of the conductor

Question 2

Difference between conventional current and electron flow

Answer 2

Conventional current - electric charge moves from positive to negative

Electron flow - electric charge moves from the negative to the positive (opposites attract)

Question 3

Mean drift velocity

Answer 3

The average velocity with which free electrons in a conductor get drifted under the influence of an external electric field applied across the conductor

Question 4

Equation for current in terms of n

Answer 4

I = Anev

Question 5

Kirchhoff’s first law

Answer 5

At any node (junction) in a circuit, the sum of currents passing in one equivalent to the sum of currents flowing out

Question 6

Elementary charge (e)

Answer 6

1.6x10^-19 C