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Electric field from voltage drop

  • Thread starter HastiM
  • Start date
  • #1
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1

Homework Statement



Calculate the electric field given by a voltage drop of 1 V across an insulator with thickness 20 nm.

2. The attempt at a solution

I am not sure which formula to use in order to obtain the electric field. I think one should use the formula E=U/d, where E denotes the (absolute value of the) electric field, d=20 nm, and U=1V. Is that correct?
 

Answers and Replies

  • #2
cnh1995
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Homework Statement



Calculate the electric field given by a voltage drop of 1 V across an insulator with thickness 20 nm.

2. The attempt at a solution

I am not sure which formula to use in order to obtain the electric field. I think one should use the formula E=U/d, where E denotes the (absolute value of the) electric field, d=20 nm, and U=1V. Is that correct?
Yes.
 

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