A) \[5{{C}_{o}},\,\,5{{W}_{o}}\]
B) \[5{{C}_{o}},\,\,\frac{{{W}_{o}}}{5}\]
C) \[\frac{{{C}_{o}}}{5},\,\,5{{W}_{o}}\]
D) \[\frac{{{C}_{o}}}{5},\,\,\frac{{{W}_{o}}}{5}\]
Correct Answer: B
Solution :
When a dielectric K is introduced in a parallel plate condenser its capacity becomes K times. Hence C? \[=\,\,\,5\,{{C}_{0}}.Energy\,\,stored\,\,{{W}_{0}}=\frac{{{q}^{2}}}{2{{C}_{0}}}\] \[\therefore \,\,\,\,\,\,\,\,W'\,\,=\,\,\frac{{{q}^{2}}}{2C'}=\frac{{{q}^{2}}}{2\times 5{{C}_{0}}}\,\,\,\,\,\,\,\,\,\Rightarrow \,\,\,\,\,\,\,\,\,W'=\frac{{{W}_{0}}}{5}\]You need to login to perform this action.
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