A capacitor is constructed of two parallel plates of side l separated by a distance d. A material of dielectric constant k is inserted a distance x as shown in the figure. The potential difference between the plates is V. The energy stored by the system is:

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A capacitor is constructed of two parallel plates of side l separated by a distance d. A material of dielectric constant k is inserted a distance x as shown in the figure. The potential difference between the plates is V. The energy stored by the system is:


 
 
 
 
 
 
a. U = (1 – #(k – 1))V²
b. U = } (x + (k – 1))V²
2 d
c. U = (x – (k – 1))V²
d
d. U = (1+ ¤(k – 1))V²
Transcribed Image Text:a. U = (1 – #(k – 1))V² b. U = } (x + (k – 1))V² 2 d c. U = (x – (k – 1))V² d d. U = (1+ ¤(k – 1))V²
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