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Electric Circuits

Electric Circuits
In the circuit given below the value of resistance Req is

 10 Ω.
 25 Ω.
 11.18 Ω.
 11.86 Ω.

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Electric Circuits
In RLC series circuit R = 2Ω, L = 2mH and C = 1μF. Find the time constant of the circuit?

 2 μsec
 4 msec
 1 μsec
 2 msec

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Electric Circuits
Two resistors R1 and R2 give combined resistance of 4.5 Ohm when connected in series and 1 Ohm when in parallel, the resistances are

 2.2 Ohm and 2.3 Ohm.
 1.25 Ohm and 3.25 Ohm.
 1.5 Ohm and 3 Ohm.
 2 Ohm and 2.5 Ohm.

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Electric Circuits
In which of the following oscillations are not present?

 Over damping
 Critical damping
 Both 2 and 3
 Under damping

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Electric Circuits
Super mesh analysis is used in case of

 ideal voltage source is connected between two non reference nodes.
 current source branch is common for two meshes.
 either 1 or 2.
 both.

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Electric Circuits
In the circuit shown below, what is the voltage across 5 Ω resistor?

 34.4 V.
 -28.4 V.
 -27.4 V.
 None of them

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