For a cylindrical conductor of radius R and cross-sectional area A = πR², answer the following two current-density questions.
Physics · Current electricity · Electric Current, Drift Velocity & Resistance
For a cylindrical conductor of radius R and cross-sectional area A = πR², answer the following two current-density questions.
Sub-question 1
The current density varies as J = J₀(1 - r/R). The total current is:
Options
Sub-question 2
If instead J = J₀r/R, the total current is:
Options