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Electric Circuits

Electric Circuits
In the circuit given below the value of resistance Req is

 11.18 Ω.
 11.86 Ω.
 25 Ω.
 10 Ω.

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Electric Circuits
The lead acid cell should not never be discharged beyond

 2 V.
 1.9 V.
 1.8 V.
 2.1 V

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Electric Circuits
A voltage source having an open circuit voltage of 100 V and internal resistance of 50 Ω is equivalent to a current source

 none of these.
 0.5 A in parallel with 50 Ω.
 2 A with 50 Ω in parallel.
 2 A with 50 Ω in series.

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Electric Circuits
The thevnin equivalent of the circuit shown in the figure is

 1.5V, 1.5 Ohm
 0.75V, 5/6 Ohm
 1.5V, 5/6 Ohm
 0.75 V, 1.5 Ohm

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Electric Circuits
Two resistor are said to be connected in parallel when

 both have the same potential difference.
 both ‘b’ and ‘c’
 both carry the same value of current.
 total current equals the sum of branch currents.

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Electric Circuits
When water is added to sulphuric acid

  colour of acid changes.
  water start boiling.
  lot of heat is generated.
  acid particles get separated.

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