Question

When a conductor of cross-sectional area 5^-6m2 Carries a current of 6A, drift velocity of conduction electrons is 1.2^10-4m/s. What is the number density (What is the number density (Number per unit volume) Of conduction electrons

Answer 1

Explanation:

i = n × e × A × v.d

6 = n × (1.6 × 10^-19) × (5 × 10^-6) × (1.2 × 10^-4)

n = (6× 10^ 29) / (1.6 × 5 × 1.2)

n= (6/9.6) × 10^29

n = 0.625 × 10^29

n= 6.25 × 10^28