# Capacitors & Capacitance – Exercise – 1

1. Increasing the charge on plate of capacitor means.

(a) Increasing the capacitance
(b) Increasing the P.D. between the plates
(c) Both (a) and (b)
(d) None of these

Explanation
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2. The capacitance of a parallel plate capacitor is given by :

(a)  C = a/v
(b) C = εoA/d
(c) C  = dA/εo

Explanation
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3. When three capacitors C1, C2, C3 are connected in series them resultantant is given by

(a) Cs=(1/C1)+(1/C2)+(1/C3)
(b) Cs= C1+C2+C3
(c) 1/Cs=(1/C1)+(1/C2)+(1/C3)
(d) None of these

Explanation
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4. When three capacitors C1 + C2 + C3 connected in parallel then resultant is given by :

(a) Cp = (1/C1) + (1/C2) + (1/C3)
(b) Cp = C1 + C2 + C3
(c) 1/Cp = (1/C1) + (1/C2) + (1/C3)
(d) None of these

Explanation
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5. The dielectric constant of metal is :

(a) 1
(b) Zero
(c) Infinity
(d) none of these