Related Questions

A device which converts electrical energy into mechanical energy is
A Dynamo
B Transformer
C Electric motor
D Inductor
Conversion of sound energy into electrical energy is done by
A Solar cell
B Gramophone
C Microphone
D Loudspeaker
Conversion of chemical energy into electrical energy occurs in
A Atomic bombs
B Dynamo
C A battery
D Electric heaters
Direct conversion of chemical energy into electrical energy is done in a
A Magnetohydrodynamic (MHD) generator
B Fuel cell
C Fast breeder reactor
D None of these
A device that converts mechanical into electrical energy is?
A solar cell
B thermocouple
C chemical cell
D generator
E None of the above
Direct conversion of heat into electrical energy is possible through
A fuel cells
B solar cells
C MHD generators
D none of the above
Direct conversion of thermal energy to electrical energy is facilitated by the
A Fuel cells
B Photo voltaic cell
C Magneto hydrodynamic generator
D None of these
A device that converts mechanical pressure to electrical energy is called a:
A piezoelectric device
B solar cell
C photodiode
D nicad cell
E None of the above
The component that forms the electrical connection between the rotating coil of wire in a motor and the external source of electrical energy is called the:
A rotor
B armature
C battery
D commutator
E None of the above
Pick out the wrong conversion formula for the conversion of weight units :
A 1 tonne = 1000 kg = 22.046 lbs
B 1 U.S. ton = 907 kg = 0.907 tonne = 0.893 ton
C 1 ton = 2240 lbs = 1016 kg = 1.016 tonnes = 1.12 U.S. tons
D None of these

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