Name a device which converts-
(a) electrical energy into light energy-
(b) sound energy into electrical energy
(c) chemical energy into electrical energy
Based Question
Answers
Answer:
(a) In the case of an electric bulb, the electrical energy is converted to light and heat. The amount of electrical energy put into a bulb = the amount of light energy (desirable form) plus the heat energy that comes out of the bulb (undesirable form).
a) In the case of an electric bulb, the electrical energy is converted to light and heat. The amount of electrical energy put into a bulb = the amount of light energy (desirable form) plus the heat energy that comes out of the bulb (undesirable form).(b) microphones
a) In the case of an electric bulb, the electrical energy is converted to light and heat. The amount of electrical energy put into a bulb = the amount of light energy (desirable form) plus the heat energy that comes out of the bulb (undesirable form).(b) microphonesTypes of transducers
a) In the case of an electric bulb, the electrical energy is converted to light and heat. The amount of electrical energy put into a bulb = the amount of light energy (desirable form) plus the heat energy that comes out of the bulb (undesirable form).(b) microphonesTypes of transducersMost microphones use either an electromagnetic or an electrostatic technique to convert sound waves into electrical signals. The dynamic microphone is constructed with a small magnet that oscillates inside a coil attached to the diaphragm.
a) In the case of an electric bulb, the electrical energy is converted to light and heat. The amount of electrical energy put into a bulb = the amount of light energy (desirable form) plus the heat energy that comes out of the bulb (undesirable form).(b) microphonesTypes of transducersMost microphones use either an electromagnetic or an electrostatic technique to convert sound waves into electrical signals. The dynamic microphone is constructed with a small magnet that oscillates inside a coil attached to the diaphragm.(c) battery
a) In the case of an electric bulb, the electrical energy is converted to light and heat. The amount of electrical energy put into a bulb = the amount of light energy (desirable form) plus the heat energy that comes out of the bulb (undesirable form).(b) microphonesTypes of transducersMost microphones use either an electromagnetic or an electrostatic technique to convert sound waves into electrical signals. The dynamic microphone is constructed with a small magnet that oscillates inside a coil attached to the diaphragm.(c) batteryA battery is a device that converts chemical energy contained within its active materials directly into electric energy by means of an electrochemical oxidation-reduction (redox) reaction. This type of reaction involves the transfer of electrons from one material to another via an electric circuit.
Answer:
(a) electrical energy into light energy- Electric bulb
(b) sound energy into electrical energy- Loudspeaker
(c) chemical energy into electrical energy- Battery or cell
Explanation:
- The electric bulb has a filament in the glass of the bulb, the filament glows due to heat as the electricity is passed through the filament. The filament has two terminals from where the electricity is supplied to the electrical bulb. Hence, in this way, it converts electrical energy to light energy.
- A dynamic microphone or the loudspeaker consists of a small magnet that vibrates inside a coil mounted on the diaphragm. When a sound wave vibrates the diaphragm of a microphone, the relative movement of the magnet and coil produces an electrical signal by magnetic induction.
- A battery is a device that stores chemical energy and converts it into electrical energy. In the battery, the electricity is generated from the flow of electrons in the electrolyte of the cell.
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