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Electric Circuits

Electric Circuits
From the circuit diagram shown in question 1 find the maximum power transferred to the load.

 15.247 W.
 9 W.
 1.875 W.
 4.547 W.

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Electric Circuits
Which of following materials has the least resistivity ?

  Mercury.
  Lead.
  Zinc.
  Copper.

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Electric Circuits
Three element having conductance G1, G2 and G3 are connected in parallel. Their combined conductance will be

 (1 / G1 + 1 / G2 + 1 / G3) - 1.
 1 / G1 + 1 / G2 + 1 / G3.
 (G1 + G2 + G3) - 1.
 G1 + G2 + G3.

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Electric Circuits
A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The current in R is

 1.27 A.
 2.54 A.
 5.08 A.
 10.16 A.

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Electric Circuits
Silver coating is provided for

  decorative purpose.
  all of above.
  bearing surfaces.
  protective purpose.

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Electric Circuits
Which of the following lamp has least resistance ?

  200 W, 220 V.
  60 W, 220 V.
  25 W, 220 V.
 100 W, 220 V.

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MORE MCQ ON Electric Circuits

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