Three plates A,;B,;Ceach of area 50,c{m^2} have separation 3,mm between A and B and 3,mm between B and C. The energy stored when the plates

Q: Three plates $A,\;B,\;C$each of area $50\,c{m^2}$ have separation $3\,mm$ between $A$ and $B$ and $3\,mm$ between $B$ and $C$. The energy stored when the plates are fully charged is

b (b) There are two capacitors parallel to each other. Total capacitance$ = \frac{{2{\varepsilon _0}A}}{d}$ Energy stored $ = \frac{1}{2}\left( {\frac{{2{\varepsilon _0}A}}{d}} \right)\,{V^2}$ $ = \frac{{8.86 \times {{10}^{ - 12}} \times 50 \times {{10}^{ - 4}} \times {{12}^2}}}{{3 \times {{10}^{ - 3}}}} = 2.1 \times {10^{ - 9}}\,J$

SECTION - A [PHYSICS - MCQ]

GSEB - English Medium

Three plates $A,\;B,\;C$each of area $50\,c{m^2}$ have separation $3\,mm$ between $A$ and $B$ and $3\,mm$ between $B$ and $C$. The energy stored when the plates are fully charged is

A$1.6 \times {10^{ - 9}}\,J$
B$2.1 \times {10^{ - 9}}\,J$
C$5 \times {10^{ - 9}}\,J$
D$7 \times {10^{ - 9}}\,J$

Medium

STD 11 Science
NEET
STD 12 - 2. Electric potential and capacitance
Physics

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