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A parallel plate condenser has a uniform electric field E(V/m) in the space between the plates. If the distance between the plates is d(m) and area of each plate is A(m²) the energy (joules) stored in the condenser is
Options
(a) E² Ad / ?￢ﾂﾀ
(b) 1/2 ?￢ﾂﾀ E²
(c) ?￢ﾂﾀ E Ad
(d) 1/2 ?￢ﾂﾀ E² Ad
Correct Answer:
1/2 ?￢ﾂﾀ E² Ad
Explanation:
U = 1/2 CV²
U = 1/2 (A ?￢ﾂﾀ / d) (Ed)²
= 1/2 ?￢ﾂﾀ E² Ad
Related Questions: - Consider the following two statements about Kirchhoff’s law
- A 10 micro farad capacitor is charged to 500 V and then its plates are joined
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Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Consider the following two statements about Kirchhoff’s law
- A 10 micro farad capacitor is charged to 500 V and then its plates are joined
- Water falls from a height of 60m at the rate of 15 kg/s to operate a turbine
- The velocity v of waves produced in water depends on their wavelength λ, the density
- Consider a uniform square plate of side ɑ and mass m. The moment of inertia
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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