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Two parallel plate air capacitors are co...

Two parallel plate air capacitors are construted, one by a pair of iron plates and the second by a pair of copper plates of same area and same spacings. Then

A

the copper plate capacitor has a greater capacitance than the iron one

B

both capacitors will have equal non zero capacitances, in the uncharged state

C

both capacitors will have equal capacitanes only if they are charged equally

D

the capacitances of the two capacitors are unequal even they are unequally charged

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The correct Answer is:
B
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