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Electric Circuits

Electric Circuits
If N is the number of nodes and b is the number of branches in a network, then rank of tie set matrix is

 b - N + 1.
 N - 1.
 b - N - 1.
 N.

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Electric Circuits
A current is said to be alternating when it changes in

 direction.
 both ‘a’ and ‘b’.
 none of these.
 magnitude.

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Electric Circuits
Highest current density is usually recommended for

  bronze plating.
  cadmium plating.
  chromium plating.
  tin plating.

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Electric Circuits
Inductor does not allow the sudden change of

 power
 current
 voltage
None of these

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Electric Circuits
A delta connection contains three equal impedance of 60 Ω. The impedance of the equivalent star connection for each star load will be

 30 Ω.
 20 Ω.
 40 Ω.
 15 Ω.

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

None of these
 0
 Both
 ∞

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MORE MCQ ON Electric Circuits

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