Electrostatic Potential and Capacitance — Important Questions
Telangana Open School (TOSS) · Class 12 · Physics
57 important questions from Electrostatic Potential and Capacitance for Telangana Open School (TOSS) Class 12 Physics, with answers.
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Important Questions from Electrostatic Potential and Capacitance
What is the potential at a point on the equatorial line of an electric dipole?
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Zero
The electric potential due to a dipole on its equatorial line is zero because the angle θ is 90° and cos 90° = 0, making V = 0 in the dipole potential formula.
The capacitance of a parallel plate capacitor is directly proportional to:
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Area of plates
The capacitance of a parallel plate capacitor is given by C = ε₀A/d, so it is directly proportional to the area A of the plates.
Which of the following materials is used as a dielectric in capacitors?
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Mica
Mica is mentioned in the chapter as a dielectric material with a dielectric constant of about 6. Conductors like copper and aluminum cannot act as dielectrics.
What is the unit of capacitance?
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Farad
The SI unit of capacitance is farad (F), defined as 1 coulomb per volt. This is clearly stated in the chapter.
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