Electrostatic| Practice MCQs Physics for Mdcat | mosaicbro.com

Electrostatic| Practice MCQs Physics for Mdcat

7 of 93 questions (Page 13 of 14)

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85 The capacitance of parallel plate condenser varies with:
Correct Answer: A
Explanation: Capacitance depends on plate area, distance, and dielectric material.
86 In a charged capacitor, the energy is stored in:
Correct Answer: A
Explanation: Energy is stored in the electric field between the plates.
87 Farad is a unit of:
Correct Answer: B
Explanation: The farad is the SI unit of capacitance.
88 The capacitance of a parallel plate condenser is C. Its capacity when the separation between the plates is halved will be:
Correct Answer: B
Explanation: Capacitance is inversely proportional to plate separation; halving the distance doubles the capacitance.
89 Two condensers of capacitance C₁ and C₂ respectively are connected in parallel. The equivalent capacitance of the system is:
Correct Answer: A
Explanation: Capacitors in parallel add directly: $C_{\text{eq}} = C_1 + C_2$.
90 The empty space between the plates of a capacitor is filled by a liquid of dielectric constant K. The capacitance of capacitor:
Correct Answer: A
Explanation: A dielectric increases capacitance by a factor of its dielectric constant $K$.
91 In order to increase the capacity of a parallel plate condenser one should introduce between plates a sheet of:
Correct Answer: A
Explanation: Mica (a dielectric) increases capacitance.
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