Q. 84.8( 13 Votes )

Answer :

Given, A = 6 x 10^{-3} m^{2}

D = 3 mm = 3 x 10^{-3} m

Capacitance of the capacitor,

⇒ C = 1.77 x 10^{-11} F = 17.7 pF

When the capacitor is connected to a 100 V supply, the charge on the __each__ plate of the capacitor,

q = CV = 1.77 x 10^{-11} x 100 = 1.77 x 10^{-9} C

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PREVIOUSThree capacitors of capacitances 2 pF, 3 pF and 4 pF are connected in parallel.(a) What is the total capacitance of the combination?(b) Determine the charge on each capacitor if the combination is connected to a 100 V supply.NEXTExplain what would happen if in the capacitor given in Exercise 2.8, a 3 mm thick mica sheet (of dielectric constant = 6) were inserted between the plates,(a) while the voltage supply remained connected.(b) after the supply was disconnected.

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