Question

match the following
column a

motor
voltmeter
loudspeaker
photocell


column b

light into electrical energy.
electrical into Mechanical Energy.
electrical into chemical energy.
electrical into sound energy.
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Answer 1

Answer:

Motor-2

Voltmeter-3

Loudspeaker-4

Photocell-1

Explanation:

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Answer 2

Answer:

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Explanation:

An electric motor is an electrical machine that converts electrical energy into mechanical energy.

A voltmeter is an instrument used for measuring electric potential difference between two points in an electric circuit. Analog voltmeters move a pointer across a scale in proportion to the voltage of the circuit; digital voltmeters give a numerical display of voltage by use of an analog-to-digital converter.

A loudspeaker is an electroacoustic transducer; a device which converts an electrical audio signal into a corresponding sound.

photocell - light into electrical energy