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Electric Circuits

Electric Circuits
Open circuit voltage of a fully charged lead acid cell is

 1.9 V.
 2.7 V.
 2.5 V.
 2 V.

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Electric Circuits
Consider the following circuit. In this circuit, when Vs = 3 V, I = 4 A, what is the value of I when Vs = 12 V?

 10 A.
 15 A.
 7 A.
 20 A.

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Electric Circuits
For cadium plating electrolyte used is

 cadmium sulphate and sulphuric acid.
 any of above.
 sodium cyanide, cadmium and caustic soda.
 cadmium hexa metaphosphate.

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Electric Circuits
The charge of an electron is

 - 9.109 × 10 - 31 Coulombs.
 - 1.672 × 10 - 27 Coulombs.
 - 1.675 × 10 - 27 Coulombs.
 - 1.602 × 10 - 19 Coulombs.

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Electric Circuits
A parallel plate capacitor with air as dielectric, force between plate is F. If capacitor is now immersed water of dielectric εr, force between plate will be –

 0.
 εr/F.
 F εr.
 F.

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

 1A, 5/6 Ohm
 0.75 A, 1.5 Ohm
 1A, 1.5 Ohm
 0.75A, 5/6 Ohm

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