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Suppose the electric field strength near the surface of a conductor is E=10 N/C.

ID: 1413862 • Letter: S

Question

Suppose the electric field strength near the surface of a conductor is E=10 N/C. If the total charge on the conductor is 100C, what is the surface area of the conductor?   The units on all answers are m2.



The electric potential on the surface of a conductor (in static equilibrium) is 5V. What are the electric field strength and electric potential in the interior of the conductor, respectively?

0 N/C, 5V

0 N/C, 0V

3 N/C, 2V

5 N/C, 0V

5 N/C, 5V

5/o

20/o

42/o

10/o

1/o

a.

0 N/C, 5V

b.

0 N/C, 0V

c.

3 N/C, 2V

d.

5 N/C, 0V

e.

5 N/C, 5V

Explanation / Answer

1. phi = electric flux = E.A = Q/e0

A = Q/(e0*E)

A = 100/(10*eo)

A = 10/e0

2.

Electric field inside a surface of conductor = 0 N/C

electric potential just inside will be same as the the potential on surface.

Correct option will be A.

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