Question

(i) Rank the following five capacitors from greatest to smallest capacitance, noting any cases of equality. (a) a 20- μF capacitor with a 4-V potential difference between its plates (b) a 30- μF capacitor with charges of magnitude 90μC on each plate (c) a capacitor with charges of magnitude 80 μC on its plates, differing by 2V in potential, (d) a 10- μF capacitor storing energy 125 μJ (e) a capacitor storing energy 250 μJ with a 10-J potential difference.

Answer 1

The Rank from greatest to smallest capacitance, noting any cases of equality is C>B>A>D>E.

What is capacitance?

The ratio of the quantity of electric charge held on a conductor to an electric potential difference is known as capacitance. Self capacitance and mutual capacitance are two concepts that are related to one another. Self capacitance is a property of all electrically chargeable objects. In this instance, the electrical potential difference between the object and the ground is measured. At a given potential difference, a material with a high self capacitance can carry more electric charge than one with a low capacitance. Understanding the concept of mutual capacitance is crucial for comprehending how the capacitor, one of the three basic linear electronic components, operates (along with resistors and inductors).

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