Question 461: Electrostatics & Capacitance

Question

The graph shows the variation of voltage ' V ' across the plates of two capacitors $A$ and $B$ versus increase in charge ' $Q$ ' stored in them. Then

Accepted Answer

The relationship between charge $ Q $ and voltage $ V $ for a capacitor is given by:
$ Q = CV $
This equation is analogous to $ y = mx $, where $ C $ is the capacitance, equivalent to the inverse of the slope of the line on the graph. Therefore, we can express capacitance $ C $ as:
$ C = \frac{Q}{V} = \frac{1}{	ext{slope of the line}} $
Since the line representing capacitor $ A $ has a smaller slope compared to that of capacitor $ B $, the capacitance of $ A $ is greater than that of $ B $.

Answer

capacitance A has high capacity.

Answer

capacitance B has high capacity.

Answer

both have same capacity.

Answer

capacity of $A=2$ times capacity of $B$.

Electrostatics & Capacitance

The graph shows the variation of voltage ' V ' across the plates of two capacitors A and B versus increase in charge ' Q ' stored in them. Then

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