Question

A 1 m long copper wire carries a current of 1 A. If the cross section of the wire is 2.0 mm² and the resistivity of copper is 1.7 × 10^–8 Ω m. the force experienced by moving electron in the wire is ______ × 10^–23 N. (charge on electron = 1.6 × 10^–19 C)

Answer 1

l = 1m

i = 1A

Area = 2 × 10^–6 

\(\rho\) = 1.7 × 10^–8