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Interview Question in Norton Equivalents

Interview Question :: What is a linear circuit. and can you

please tell me the actual purpose of short-circuiting all the voltage source and open-circuiting the current sourse while solving for the equivalent (Thevenin and Norton) circuit from a complex one.

linear circuit

Answers to "What is a linear circuit. and can you"

RE: What is a linear circuit. and can you?
for DC In practical view point, linear circuits are those in which if we (for example) double the value of a source, the effects (i.e currents and voltages) in circuits DUE TO THAT INDIVIDUAL SOURCE are doubled. If circuit has this property, we can find the effects of individual sources in circuit one by one, and add them up to get results. short-circuiting a voltage source means it is acting a voltage source of 0V i-e it is not participating in any voltages or currents in circuit. similarly, opening a current source means that it is now supplying zero current. we do so to find effects of individual sources one by one, and then adding up their effects. it really makes solution easy.
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RE: What is a linear circuit. and can you?
(m) A linear circuit is an electric circuit in which, for a sinusoidal input of frequency f, any output of the circuit is also sinusoidal with frequency f. Note that the output need not be in phase with the input.
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Interview Question :: What is a linear circuit. and can you

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