A) 2 F
B) 4 F
C) 0.5 F
D) 0.25 F
Correct Answer: A
Solution :
A capacitor is an arrangement which can store sufficient quantity of charge. Suppose, on given a charge q to a conductor, the electric potential of the conductor becomes V. Then, capacitance of capacitor is \[C=\frac{q}{V}\] The potential difference across the parallel plate capacitor is \[10V-(-10V)=20V\] \[\therefore \] Capacitance \[C=\frac{q}{V}=\frac{40}{20}=2F\] NOTE: The unit farad (F) is very much bigger unit as capacitance of earth, which is a huge body in the universe has a capacitance of \[711\,\,\mu F.\]So, it is not reasonable to discuss such a bigger unit in questions.You need to login to perform this action.
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