MCQ
Each capacitor in the circuit shown is a 1F capacitor. What would be the equivalent capacitance between A and B?
- A0.5F
- BF
- C2F
- D4F
Explanation:
Equivalent capacitance of each pair of capacitance in series$=\frac{1\times1}{1+1}\text{F}=0.5\text{F}$
The two series combination are connected in parallel. Hence the net capacitance becomes 0.5F + 0.5F = 1F
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The outer sphere of a spherical air capacitor is earthed. For increasing its capacitance
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(a) Vacuum is created between two spheres |
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(b) Dielectric material is filled between the two spheres |
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(c) The space between two spheres is increased |
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(d) The earthing of the outer sphere is removed |
Kirchhoff's second law is based on the law of conservation of
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(a) Charge |
(b) Energy |
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(c) Momentum |
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