Two substances are identical except that the electron mean free time for substance A is twice the electron mean free time for substance B. If the same electric field exists in both substances the electron drift speed in A is:

Complete Question  

Two substances are identical except that the electron mean free time for substance A is twice the electron mean free time for substance B. If the same electric field exists in both substances the electron drift speed in A is:

Select one:

a. half that in B

b. four times that in B

c. twice that in B

d. the same as in B

e. one fourth that in B

Option c is correct

Explanation:

From the question given

The electron mean free time substance for substance is

The electron mean free time substance for substance B is

Generally the drift velocity for substance A is mathematically represented as

Generally the drift velocity for substance B is mathematically represented as

So

=>    

in order to follow the instructions and complete the statements, i need to use data from table c of your student guide. can you think of a way to let me see your student guide for a while ? i can't answer the question without the data in table c.

answer///isobars;