A cylindrical wire of radius and conductivity is subjected to an electric field of . The expected value of current in the wire will be . The value of is ____.
Step 1: Given Data:
Radius of wire
Conductivity
Electric field
Expected value of current
Step 2: Calculating the current density:
Current density is given as,
Where, Conductivity of material
Electric field
Step 3: Calculating the expected current:
Current density
Now, comparing the value of expected current value of is found to be .
Hence, value of is .