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Electric Circuits

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

 11.18 Ω.
 10 Ω.
 11.86 Ω.
 25 Ω.

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Electric Circuits
The breakdown voltage for paper capacitor is usually

 2000 to 3000 volts.
 200 to 1600 volts.
 20 to 60 volts.
 more than 10000 volts.

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Electric Circuits
Find the Z parameters of the circuit shown in figure.

 Z11 = 2; Z12 = 1; Z21 = 1; Z22 = 2
 Z11 = 3; Z12 = 3; Z21 = 3; Z22 = 3
 Z11 = 1; Z12 = 1; Z21 = 1; Z22 = 1
 Z11 = 3; Z12 = 1; Z21 = 1; Z22 = 3

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Electric Circuits
In question no.3, which of the following is true ?

 i(0+)= iL(0+).
 None of these.
 iL(0) = ic (0).
 ic (0+) = i(0+).

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Electric Circuits
For ideal tank circuit, what is the value of dynamic admittance?

None of these
 Both
 ∞
 0

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Electric Circuits
Three parallel resistive branches are connected across a DC supply. The ratio of the branch resistances are given as R1:R2:R3 :: 2:4:6. The ratio of the branch currents is

 2:4:6.
 6:4:2.
 6:3:2.
 2:3:6.

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