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Electric Circuits

Electric Circuits
Consider the following circuit. What is the value of i ?

  5 A.
 - 5 A.
 6 A.
 12 A.

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Electric Circuits
An ideal constant voltage source has _______________ internal impedance whereas a constant current source has ____________ internal impedance.

 zero, infinite
 infinite, infinite
 zero, zero
 infinite, zero

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Electric Circuits
The terminals across the source are ___________ if a voltage source is to be neglected.

 replaced by a series resistance.
 replaced by a shunt resistance.
 short circuited.
 open circuited.

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Electric Circuits
For the network shown below when I = 0, V = 20 V and when R = 0, I = 10 A. If now R = 3 Ω what is the value of the current I?

 4 A.
 10 A.
 6 A.
 5 A.

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Electric Circuits
The current flowing between electrodes inside a lead acid battery is

 electron current.
 polarization current.
 ionization current.
 proton current.

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Electric Circuits
Four bulbs of 40 W each are connected in series with a battery across them, which of the following statement is true?

 The voltage across each bulb is not same.
None of these
 The power dissipation in each bulb is not same.
 The current through each bulb is same.

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