Maximum charge on the plates of a capacitor

  • #1
lorenz0
148
28
Homework Statement
A square circuit of side with a resistance and a capacitor is in a region of space where there is a field perpendicular to circuit, pointing inward, which changes according to
Find the maximum charge on the plates of the capacitor and which plate is going to be positively charged and which one is going to be negatively charged.
Relevant Equations
What I have done:

The electromotive force due to Faraday's Law is:
In the circuit, going around the loop in a clockwise fashion:

so .

Since the current goes around in a clockwise fashion, the upper plate should be charge positively and the bottom one negatively.

Now, I have a doubt: does it make sense that comes out negative?

Other than that, is my solution correct? Thanks
 

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  • #2
Remember: . How did you choose ? Check signs
 
  • #3
Gordianus said:
Remember: . How did you choose ? Check signs
and since is pointing inside the page and the area is oriented with the normal pointing away from the page this becomes so
 
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