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Electric Circuits

Electric Circuits
In the circuit shown in the figure the voltage across the 2 Ω resistor is

 1 V.
 3 V.
 4 V.
 2 V.

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Electric Circuits
From the circuit diagram shown in question 1 find the thevnin voltage.

 5 V.
 1.5 V.
 3 V.
 15 V.

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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

 2:4:6.
 6:3:2.
 6:4:2.
 2:3:6.

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Electric Circuits
In RLC parallel circuit to get Q>1 which of the following is required?

 XL>R
 XL
 XL=R
All of these

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Electric Circuits
If c1 = 8 μF, c2 = 4 μF, c3 = 7 μF c1, c2 are in series with c3 in parallel; effective capacitance will be

 3 μF.
 6 μF.
 9.67 μF.
 2.21 μF.

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Electric Circuits
Say A point has an absolute potential of 40 V and point B has an absolute potential of - 10 V, then what will be the value of VBA ?

  - 50 V.
 50 V.
  none of above.
  30 V.

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