Description : Energy conversions taking place in a microphone are (a) sound to mechanical to electrical (b) electrical to mechanical to sound (c) sound to mechanical (d) mechanical to sound
Last Answer : Ans:(a)
Description : In an electric motor, the energy transformation is from _______. (1) electrical to chemical (2) chemical to light (3) mechanical to electrical (4) electrical to mechanical
Last Answer : (4) electrical to mechanical Explanation: An electric motor is an electrical machine that converts electrical energy into mechanical energy. The reverse of this would be the conversion of mechanical energy into electrical energy and is done by an electric generator.
Description : Microphone converts sound energy into ------? A. Microwaves B. Electrical signals (Answer) C. Optical Signals D. Heat energy
Last Answer : B. Electrical signals (Answer)
Description : Conversion of sound energy into electrical energy is done by – (1) Solar cell (2) Gramophone (3) Microphone (4) Loudspeaker
Last Answer : (3) Microphone Explanation: Conversion of sound energy into electrical energy is done by microphone.
Description : The device which converts sound energy into electrical enemy is called – (1) Amplifier (2) Speaker (3) Microphone (4) Transmitter
Last Answer : (3) Microphone Explanation: A microphone converts sound energy to electrical energy this energy level is used as an output using same energy level, amplified or it could be used to record those ... coil within a strong magnetic field. The induced current duplicates the frequency of the sound wave.
Description : Conversion of sound energy into electrical energy is done by (1) Solar cell (2) Gramophone (3) Microphone (4) Loudspeaker
Last Answer : Microphone
Description : The device which converts sound energy into electrical energy is called (1) Amplifier (2) Speaker (3) Microphone (4) Transmitter
Description : A dynamo converts ______. (1) Mechanical energy into sound energy (2) Mechanical energy into electrical energy (3) Electrical energy into mechanical energy (4) None of these
Last Answer : (2) Mechanical energy into electrical energy Explanation The dynamo, by attaching it in between the two tires, converts the mechanical energy (which of course, is produced by paddling) into electrical energy, and by connecting the wires going out of the dynamo to light, it glows without any flaw.
Description : Speaker is a device that __________. A. convert current variations into sound waves B. none of these C. convert electrical energy to mechanical energy D. convert sound waves into current and voltage
Last Answer : A. convert current variations into sound waves
Description : A song is digitally recorded by an artist and saved to a file. Then, the artist runs a program that takes the file as input and produces a new file. The new file does not include any sound ... a smaller file size. D. This is a lossless transformation of data that results in a larger file size.
Last Answer : A. This is a lossy transformation of data that results in a smaller file size.
Description : What energy transformation takes place when a lawn mower is used?
Last Answer : What is the answer ?
Description : Study of transformation of heat energy to mechanical energy to other forms of energy. a. Thermodynamics b. Physics c. Mechanics d. None of the above
Last Answer : Thermodynamics
Description : Which branch of science deals with the transformation of chemical energy into electrical energy and vice versa ?
Last Answer : Electrochemistry
Description : What energy transformation occurs when an electrical fan turned on?
Last Answer : When a fan is turned on, electrical energy is transformed tokinetic energy and a little heat energy.
Description : What is Thermal Mechanical Transformation ?
Last Answer : The conversion of rocks under the influence of both surface heat and crustal pressure is called thermal-mechanical conversion.
Description : Microphone is an ________device, which takes voice as input: a) Output b) Input c) Both of Above d) None of These
Last Answer : b) Input
Description : If I sing into a microphone, will I sound closer to what I think I sound like?
Last Answer : I’d love to know. My own voice sounds lovely when heard from inside my brain, but like a bad Jacqueline Kennedy impersonation when recorded. I often wonder which voice is heard by other people.
Description : Microphone is a device which transforms the – (1) sound signal into current signal (2) current signal into sound signal (3) sound signal into light signal (4) light signal into sound signal
Last Answer : (1) sound signal into current signal Explanation: Microphone is a device which transforms the sound signal Into current signal.
Description : Microphone is a device which transforms the (1) sound signal into current signal (2) current signal into sound signal (3) sound signal into light signal (4) light signal into sound signal
Last Answer : sound signal into current signal
Description : What converts microphone sound ?
Last Answer : Microphone converts sound into electrical signal.
Description : microphone does not work
Last Answer : You do not write what type of nb it is and what headphones you use. Some computers use a combined multi-connector headphone and microphone connector - that is, just one 4-pin connector, fairly familiar from a mobile phone.
Description : In order to play and hear sound on a computer, one needs: A) a sound card and speakers B) a microphone C) all of them required D) none of them required
Last Answer : Answer : A
Description : For sound recording, what is necessary? a) Speaker b) Microphone c) Talker d) Mouse e) Telephone
Last Answer : b) Microphone
Description : The device used for converting mechanical energy into electrical energy is called a/an (a) cell (b) transformer (c) dynamo (d) electric motor
Last Answer : Ans:(c)
Description : Which of the following devices converts electrical energy into mechanical energy? (a) Dynamo (b) Transformer (c) Electric motor (d) Inductor
Description : By which device mechanical energy is converted into electrical energy? -General Knowledge
Last Answer : Dynamo The device used to convert mechanical energy into electrical energy is called Dynamo.
Description : What is the name of the device that converts mechanical energy into electrical energy ?
Last Answer : Generator is a device that converts mechanical energy into electrical energy.
Description : What is the machine that converts mechanical energy or motion into electrical energy?
Last Answer : generator
Description : A dynamo is a device which – (1) creates mechanical energy (2) creates electrical energy (3) converts mechanical energy into electrical energy (4) converts electrical energy into mechanical energy
Last Answer : (3) converts mechanical energy into electrical energy Explanation: A dynamo is an electrical generator that produces direct current with the use of a commutator. Dynamos were the first electrical ... based, including the electric motor, the alternating-current alternator, and the rotary converter.
Description : Dynamo is a device for converting – (1) Heat energy into electrical energy (2) Mechanical energy into electrical energy (3) Magnetic energy into electrical energy (4) Chemical energy into electrical energy
Last Answer : (2) Mechanical energy into electrical energy Explanation: A dynamo is a device for converting mechanical energy into electrical energy, esp. one that produces direct current. A dynamo is an ... were based, including the electric motor, the alternating-current alternator, and the rotary converter.
Description : A transformer – (1) converts DC to AC (2) is used to decrease or increase AC voltage (3) converts AC voltage to D.C. voltage (4) converts electrical energy into mechanical energy
Last Answer : (2) is used to decrease or increase AC voltage Explanation: Transformers have made longdistance transmission of electric power a practical reality, as AC voltage can be "stepped up" and ... the loads), voltage levels are reduced by transformers for safer operation and less expensive equipment.
Description : The electric motor converts - (1) Electrical energy into mechanical energy (2) Mechanical energy into electrical energy (3) Electrical energy into light energy (4) None of these
Last Answer : (1) Electrical energy into mechanical energy Explanation: A generator converts mechanical energy into electrical energy, while a motor does the opposite - it converts electrical energy into mechanical energy.
Description : The Dynamo converts – (1) Electrical Energy into Mechanical Energy (2) Mechanical Energy into Magnetic Energy (3) None of these (4) Mechanical Energy into Electrical Energy
Last Answer : (4) Mechanical Energy into Electrical Energy Explanation: Dynamo is a device for converting mechanical energy into electrical energy, especially one that produces direct current. It uses electromagnetic ... mechanical rotation into a pulsing direct electric current through the use of a commutator.
Description : Transformer is a device to convert – (1) D.C. to A.C. (2) Low voltage D.C. into high voltage D.C. (3) Low voltage A.C. into high voltage A.C. (4) Mechanical energy into Electrical energy
Last Answer : (3) Low voltage A.C. into high voltage A.C. Explanation: A transformer is an electrical device that transfers energy from one circuit to another by magnetic coupling with no moving parts. It converts high volt-age AC into low voltage AC and vice-versa.
Description : The dynamo converts – (1) mechanical energy into electrical energy (2) electrical energy into mechanical energy (3) mechanical energy into magnetic energy (4) magnetic energy into mechanical energy
Last Answer : (1) mechanical energy into electrical energy
Description : A dynamo is used to convert – (1) mechanical energy into electrical energy (2) electrical energy into mechanical energy (3) electrical energy into magnetic energy (4) magnetic energy into mechanical energy
Last Answer : (1) mechanical energy into electrical energy Explanation: A dynamo converts mechanical energy into electrical energy by taking advantage of a phenomenon known as electromagnetic induction. It is an electric generator that is similar to those that provide electricity to our homes.
Description : A steam engine converts the heat energy of steam into _____. (1) Electrical energy (2) Chemical energy (3) Mechanical energy (4) Thermal energy
Last Answer : (3) Mechanical energy Explanation: Steam engine, machine for converting heat energy into mechanical energy using steam as a medium, or working fluid.
Description : A transformer in an electric circuit serves to ____________. A. generate its own electrical power B. transform electrical energy into mechanical energy C. increase or decrease circuit voltage as required D. convert AC current to DC current
Last Answer : Answer: C
Description : Mechanical energy is countered into electrical energy
Description : A fuel cells converts ………energy into electrical energy A. Mechanical B. Magnetic C. Solar D. Chemical
Last Answer : D. Chemical
Description : Which of these is the purpose of the power-split device? • To split electrical energy into mechanical energy • To allow both the engine and electric motor to propel the vehicle • To recharge the battery while braking
Last Answer : • To allow both the engine and electric motor to propel the vehicle
Description : Which of these is the purpose of power-split device a) To split Electrical Energy into Mechanical Energy. b) To allow both the engine and Electric motor to propel the vehicle c) To recharge the battery while braking d) To recharge the brakes while driving
Last Answer : b) To allow both the engine and Electric motor to propel the vehicle
Description : What purpose does a generator serve in a hybrid vehicle? (a) It converts nuclear energy 6more nuclear energy. (b)It converts mechanical energy into electrical energy. (c) It converts chemical energy into electrical energy. (d)It converts electrical energy into mechanical energy.
Last Answer : (b)It converts mechanical energy into electrical energy.
Description : The dynamo is a device for converting (1) Heat energy into electrical energy (2) Mechanical energy into electrical energy (3) Magnetic energy into electrical energy (4) None of these
Last Answer : (2) Mechanical energy into electrical energy
Description : Alternating current generator converts.......... energy into electrical energy? a. mechanical energy b. chemical energy c. solar energy d. potential energy
Last Answer : a. mechanical energy
Description : Thermocouples convert a. heat energy into electrical energy b. heat energy into light energy c. heat energy into mechanical energy d. mechanical energy into heat energy
Last Answer : d. mechanical energy into heat energy