Question

The plates of a parallel plate capacitor are 4cm apart the 1st plate is at 300V and the 2nd plate is at -100V.The voltage at 3cm from the 2nd plate is
a 250V
b 400V
c 100V
d 50V

Answer 1

c. 100 V

Explanation:

First, calculate the electric field between the parallel plates:

$E=\frac{V_+-V_-}{d}\\E=\frac{300-(-100)}{0.04}=10^4V/m$

3 cm from the second plane means 1 cm from the first plate.

$V=E.d\\V=10^4\times 0.01 =100 V$

Learn more about: Capacitors and potential difference

brainly.in/question/15656134

brainly.in/question/10746014

#learnwithbrainly