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Electric Circuits

Electric Circuits
Which of the following materials has highest electrical conductivity ?

  Steel.
  Silver.
  Copper.
  Aluminium.

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Electric Circuits
Which of the following is the heaviest?

 Molecule.
 Electron.
 Atom.
 Proton.

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Electric Circuits
Three identical inductors are connected in delta with a 220 V, 50 Hz, 3 - φ, supply. If the phase current is 24 A, then what is the value of each of the inductance?

 0.029.
 0.049 H.
 0.058 H.
 None of these.

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Electric Circuits
R1 = 36 Ω and R2 = 75 Ω, each having tolerance of ±5% are connected in series. The value of resultant resistance is

  111 ± 0 Ω.
 111 ± 7.23 Ω.
  111 ± 5.55 Ω.
 111 ± 2.77 Ω.

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Electric Circuits
Transients are presents in the circuit when the circuit is having

 L.
 Either L or C.
 R.
 C.

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Electric Circuits
What is mean by flow of electrons?

 Electric current.
 Insulator.
 Voltage.
 Semiconductor.

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MORE MCQ ON Electric Circuits

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