ELECTRIC CIRCUITS QUIZ

The electrical resistance of human body is around

5 ohms.

25 ohms.

250 ohms.

1000 ohms.

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Ceq of two capacitors connected in series is given by

C1 = C2.

C1 C2 / (C1 + C2).

C1C2.

C1 + C2.

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Energy efficiency during electroplating is usually in the range

90 to 99%.

85 to 90%.

50 to 80%.

80 to 85%.

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The delta equation of given star connected impedance ZQR is equal to

(20 + j10) Ω.

(10 + j30) Ω.

(5 + j10 / 3) Ω.

40 Ω.

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The value of unity impulse function at time (t) = 0 is

1.

0.

infinite.

indeterminate.

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The ratio of electric flux density to electric field intensity is called ......... of medium

permeability

capacitance

reluctance

permittivity

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A 10Ω resistor is stretched to increase its length double. Its resistance will now be

10 Ω.

40 Ω.

5 Ω.

20 Ω.

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Which of the following lamp has least resistance ?

100 W, 220 V.

200 W, 220 V.

25 W, 220 V.

60 W, 220 V.

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Three resistances of two ohms each are connected in star. In the equivalent delta representation each resistance will have a value of _______________ Ω.

0.6.

6.

5.2.

3.4.

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Constant K type HPF (high pass filter) having cut off frequency 12 KHz and nominal impedance Ro = 500 Ω Find shunt arm inductor L and series arm capacitance C for T and π section of HPF ?

L = 3.316 mH, C = 132 μF.

L = 3.316 mH, C = 0.0132 μF.

L = 0.0132 mH, C = 0.0132 μF.

None of these.

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