Is Capacitor linear or nonlinear

Answer 1

A: capacitor behaves as a linear element as the current is independent of voltage across it. current (as o/p) varies as the time rate of change of voltage across it. so capacitor rarely shows appreciable non linearity, if it is operated in the specified voltage limit

Answer 2

In this paper, the idea of implementing capacitors with DC/AC power converters (also called inverters) is proposed and demonstrated. Such capacitors are active capacitors. The voltage rating of an active capacitor is determined by the voltage rating of the power semiconductor devices used to build the inverter and the current rating of the capacitor is determined by the current rating of the power semiconductor devices used. The capacitance can be freely set in a very wide range and it is possible to have some special properties, e.g. to reduce harmonic current components.Active capacitors outperform passive capacitors in terms of tolerance, stability with respect to time and temperature.

Answer 3

A capacitor is used to store the static Electrical Energy between its two plates which are isolated from each other by means of a dielectric medium.

Now, it is found that, as we increase the applied voltage between two plates of the capacitor, the charge stored between two plates (by the virtue of the isolation between two plates) Also increases.

And It is the Applied Voltage (V) And Charge Stored between two plates of capacitors (Q) that are Linearly Related to each other.

So, we can say that the charge stored by the capacitor is linearly Dependent ( Directly Proportional ) to the Applied voltage Across it.

So. a capacitor is a linear device with respect to Charge - Voltage Relationship.

(And the same Relationship can be derived for Inductor , in which case, it is the Flux - Current Relationship that is Linear.)

And yes, For Capacitors And Inductors, The Conventional Voltage - Current (V-I) Relationships are not linear.

so, to Answer your Question,

Capacitor is a linear device BUT, for Charge - Voltage Relationship.

And Capacitor is a Non Linear Device For Voltage - Current Relationship.

Answer 4

A capacitor is not a linear device because its output characteristics is represented by a an exponential curve and not a straight line.

Answer 5

bcz in ideal case they have linear characters with respect to the plot of voltage against current

by sandeepraj patnala

Answer 6

yes, capacitor is a linear device as they behave like linear characteristic on voltage current curve

Answer 7

No , it is a passive element .

Answer 8

No, a capacitor is a passive element.