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Electric Circuits

Electric Circuits
For occurrence of resonance which of the following elements are required?

 Both 2 and 3
 R
 L
 C

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Electric Circuits
A 100 ohm resistor is directly connected across a 80 V battery. What is the power dissipation?

 5 W.
 1 W.
  64 W.
 10 W.

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Electric Circuits
From the given figure find the R3

 25 mega ohm
 25 kilo ohm
 25 mili ohm
 25 ohm

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Electric Circuits
A 3 wire, 3 - φ supply feeds a load consisting of three equal resistors. By how much is the load reduced if one of the resistors be removed when the load is in star?

 25 % of the original load.
 50 % of the original load.
 33.33 % of the original load.
 66.66 % of the original load.

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Electric Circuits
Nodal analysis can be applied for

 both planar and non planar networks.
 non planar networks.
 planar networks.
 neither planar and non planar networks.

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

  Copper.
  Silver.
  Steel.
  Aluminium.

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