A potential difference of 50 V is maintained between the two plates of a parallel plate condenser, separated by 5 mm of air. The energy stored in unit volume of air between the plates of the condenser isA. `4.425xx10^(-4) J//m^(3)`B. `2.425xx10^(-4) J//m^(3)`C. `8.425xx10^(-4) J//m^(3)`D. `6.425xx10^(-4) J//m^(3)`

A potential difference of 50 V is maintained between the two plates of

1.	A potential difference of 50 V is maintained between the two plates of a parallel plate condenser, separated by 5 mm of air. The energy stored in unit volume of air between the plates of the condenser isA. `4.425xx10^(-4) J//m^(3)`B. `2.425xx10^(-4) J//m^(3)`C. `8.425xx10^(-4) J//m^(3)`D. `6.425xx10^(-4) J//m^(3)`
Answer» Correct Answer - A `u=1/2in_(0)kE^(2)=(in_(0)kV^(2))/(2d^(2))` `=(8.85xx10^(-12)xx1xx2500)/(2xx5xx10^(-3)xx5xx10^(-3))` `=4.425xx10^(-4)J//m^(3)`

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