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2. Electric Potential and Capacitance
easy
Two plates are at potentials $-10\, V$ and $+30\, V$. If the separation between the plates be $2\, cm$. The electric field between them is.......$V/m$
A
$2000$
B
$1000$
C
$500$
D
$3000$
Solution
(a) $E = \frac{V}{d} = \frac{{30 – (\, – \,10)}}{{(2 \times {{10}^{ – 2}})}} = 2000\,V/m.$
Standard 12
Physics
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