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Electric Circuits

Electric Circuits
The resistance of 100 W, 200 V lamp is

 200 Ω.
 800 Ω.
 400 Ω.
 1600 Ω.

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Electric Circuits
Three parallel resistive branches are connected across a DC supply. The ratio of the branch resistances are given as R1:R2:R3 :: 2:4:6. The ratio of the branch currents is

 6:3:2.
 2:3:6.
 6:4:2.
 2:4:6.

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Electric Circuits
A capacitor carries a charge of 0.1 C at 5 V. Its capacitance is

 0.05 F
 0.2 F
 0.02 F
 0.5 F

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Electric Circuits
In what connection we get neutral?

  Both A and B.
  Delta.
  Star.
  Mesh.

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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 σ/ε.
 ω ε/σ.
  σ/ω ε.

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Electric Circuits
A 230V, 50Hz voltage is applied to a coil having L = 5H and R = 2 Ohm in series with capacitance C. When the voltage across the coil is 400V, find the current in the circuit?

 0.4583 A.
 0.2547 A.
 0.1465 A.
 0.1578 A.

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MORE MCQ ON Electric Circuits

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