Are power plants added to homes?
(A) in series
(B) Parallel
(C) in mixed order
(D) None of these
The filament of an electric bulb is made up of
(A) Chromium
(B) Tungsten
(C) Copper
(D) Zinc
S. What is the unit of force in I.
(A) Joule
(B) Newton
(C) Watt
(D) Cubic centimeters
Mechanical energy is converted into electrical energy by
(A) transformer
(B) Ammeter
(C) Galvanometer
(D) Dynamo
Sulfur is used?
(A) dynamite
(B) gunpowder
(C) Ammo
(D) All of the above
What of the following statements is incorrect?
(A) Iron sinks in water
(B) Wood floats on water
(C) Mercury floats on water
(D) Iron floats in mercury
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