current density in the wire if an electric field E is passing through it. Write this in terms of the resistivity and the other variables in the problem.

Complete Question

The complete question is shown on the first and second uploaded image

Note : The resistance is R = 147 Ohms

The current density in terms of resistivity is  

The current is    

Explanation:

From the question we are told that

   The length of the wire is  

    The radius of the circular cross-sectional  area  is  

    The electric field strength is E =9.41  V/m

 Generally the current density is mathematically represented as

Here is the resistivity of the wire which is mathematically represented as

So

Here A is the cross-sectional  area  which is mathematically represented as

So  

Generally the current density can also be mathematically represented as

So

=>  

=>    

=>    

that would be b i just took the test : )