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Three capacitors of capacitances 3 μF, 10 μF and 15 μF are connected in series to a voltage source of 100V. The charge on 15 μF is
Options
(a) 500 μC
(b) 100 μC
(c) 200 μC
(d) 280 μC
Correct Answer:
200 μC
Explanation:
Equivalent capacitance = C
1/C = 1/3 + 1/10 + 1/15 = (10 + 3 + 2) / 30 = 15 / 30 = 1 / 2
⇒ C = 2 μF
Charge through each capacitor is same as they are joined in series.
Q = CV = 2 × 100 = 200 μC
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Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A layer of glycerine of thickness 1 mm present between a large surface area of 0.1 m².
- Two capacitors of 10pF and 20pF are connected to 200V and 100V sources, respectively.
- A short bar magnet of magnetic moment 0.4 JT⁻¹ is placed in a uniform magnetic field
- An engine has an efficiency of 1/6. When the temperature of sink is reduced
- Two small spherical shells A and B are given positive charges of 9C and 4C
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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