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Electric Circuits

Electric Circuits
What will be the resistance if 10 resistors of 10 ohm each are connected in series?

 0.1 Ω.
 1 Ω.
 10 Ω.
 100 Ω.

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

 1.
 0.
 infinite.
 indeterminate.

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Electric Circuits
For balanced star load, if unbalanced line current are IR, IY, IB equal to - j10, - j10 and - j20 respectively, the neutral current will be equal to

  (8.66 - j5) A.
  (8.66 + j5) A.
  (-8.66 - j5) A.
  (-9.66 + j5) A.

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Electric Circuits
Basic cut set matrix consists of

 one branch.
 no branches.
 any number of branches.
 2 branch.

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Electric Circuits
When a lossy capacitor with a dielectric of permittivity ε and conductivity σ operates at a frequency ω the loss tangent for the capacitor is given by

  σ/ω ε.
 ω ε/σ.
 σ ω ε.
 ω σ/ε.

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Electric Circuits
When 125 V is applied across a 250 V, 100 W filament incandescent bulbs, the power consumption is

 100 W.
 50 W.
 12.5 W.
 25 W.

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