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Electric Circuits

Electric Circuits
In series RLC circuit to get Q>1, which of the following is required?

 XL = R
 XL > R
 XL < R
All of these

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Electric Circuits
Mica capacitor are characterised by all of following except

 low losses.
 accurate value.
 low leakage reactance.
 stable operation.

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Electric Circuits
The resistance of 200 W, 200 V lamp is

 800 Ω.
 400 Ω.
  200 Ω.
 100 Ω.

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Electric Circuits
From the given figure find the R3

 25 mili ohm
 25 kilo ohm
 25 mega ohm
 25 ohm

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Electric Circuits
The capacitive reactance of an electric circuit is 50 Ohms. The frequency of supply becomes doubled. What is the new capacitive reactance?

 100 Ohms.
 25 Ohms.
 50 Ohms.
 200 Ohms.

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Electric Circuits
Which of the following theorems can be applied to any network- linear or nonlinear, active or passive, time variant or time invariant?

 Thevnin theorem.
 Millman theorem.
 Tellegen theorem.
 Norton Theorem.

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