Description : Which of the following in the correct device that converts thermal energy into electrical energy? (1) constant volume gas thermometer (2) liquid-in-glass thermometer (3) thermopile (4) none of these
Last Answer : (3) thermopile Explanation: A thermopile is an electronic device that converts thermal energy into electrical energy.
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 : Conversion of chemical energy into electrical energy occurs in - (1) Atomic bombs (2) Dynamo (3) A battery (4) Electric heaters
Last Answer : (3) A battery Explanation: A battery is a form of chemical energy that can be converted to electrical energy. it is a device consisting of one or more electrochemical cells which performs this action. The first battery (or "voltaic pile") was invented in 1800 by Alessandro Volta.
Description : Conversion of chemical energy into electrical energy occurs in – (1) atomic bombs (2) dynamo (3) a battery (4) electric heaters
Last Answer : (3) a battery Explanation: Conversion of chemical energy into electrical energy occurs in battery.
Description : Conversion of chemical energy into electrical energy occurs in (1) Atomic bombs (2) Dynamo (3) A battery (4) Electric heaters
Last Answer : A battery
Description : Which of the following devices can be used to detect radiant heat? (1) Liquid thermometer (2) Six's maximum and minimum thermometer (3) Constant volume air thermometer (4) Thermopile
Last Answer : (4) Thermopile Explanation: Based on the thermoelectric effect, the thermopile can be used as a heat sensor to measure thermal radiation. A thermopile is made of thermocouple junction pairs connected electrically in series. Thermocouples near the ground measures radiant energy.
Description : A semiconductor that decreases in resistance with an increase in temperature is known as a _____________. A. resistor B. thermistor C. diode D. thermopile
Last Answer : Answer: B
Description : What device measures infrared radiation below? a. thermocouple b. thermopile c. thermodynamic device d. thermos
Last Answer : thermopile
Description : Which of the following devices can be used to detect radiant heat ? (1) Liquid thermometer (2) Six’s maximum and minimum thermometer (3) Constant volume air thermometer (4) Thermopile
Last Answer : Thermopile
Description : In which of the electric power generation system, the operating cost is minimum? (A) Thermal (B) Nuclear (C) Hydroelectric (D) Fast breeder reactor
Last Answer : (C) Hydroelectric
Description : 1. Alpha-keratin is a protein present in which thing? 2. Where was the first session of the Constituent Assembly held? 3. Which of the following is used as a moderator in nuclear reactor? 4. ... place is the same as which place? 20. What was the script used in the earliest Tamil inscriptions?
Last Answer : Answer : 1. Wool 2. New Delhi 3. Graphite 4. Mars 5. Afghanistan 6. Bangladesh 7. 9 players each 8. Thyroid gland 9. Jupiter 10. Grama 11. Jawaharlal Nehru 12. Plutonium 13. After the drought ... Philosophy 16. A House for Mr. Biswas 17. Gambusia 18. Right to freedom 19. Celestial pole 20. Brahmi
Description : Which of the following is/are considered a Renewable Source of Energy? (A) Wind Energy (B) Solar Energy (C) Nuclear Energy (a) Only (A) (b) Only (B) (c) Only (C) (d) Only (A) and (B) (e) All (A), (B) and (C)
Last Answer : Ans: (d)
Description : Which one is not a non-conventional energy source? (1) Nuclear energy (2) Solar Energy (3) Wind energy (4) Tidal power
Last Answer : (1) Nuclear energy Physical Geography (Set: 08)
Description : Which of the following is an unconventional source of energy? (A) Thermal power (B) Hydroelectric power (C) Nuclear-fusion power (D) Solar power
Last Answer : Option D
Description : In the United States, coal is the energy source that produces the highest percentage of our electricity. Second is: w) hydropower x) oil y) nuclear energy z) solar energy
Last Answer : ANSWER: Y -- NUCLEAR ENERGY
Description : The second most important source after fossil fuels contributing to India’s energy needs is (A) Solar energy (B) Nuclear energy (C) Hydropower (D) Wind energy
Last Answer : (C) Hydropower
Last Answer : Nuclear energy
Description : What is the difference between electric motor and dynamo ?
Last Answer : Electric energy is converted into mechanical energy in an electric motor. But in dynamos mechanical energy is converted into electrical energy.
Description : The battery has following three major functions to perform: a) To provide a source of current for engine starting, lighting and use of horn. b) To help control the voltage in the electrical system. c ... the current produced by dynamo/alternator and to furnish the current d) all of the above. Ans. d
Last Answer : ans d
Description : The main power sources for a satellite are A. batteries B. solar cells C. fuel cells D. thermoelectric generators 58. The maximum height of an ellip
Last Answer : B. solar cells
Description : Calculate the kinetic energy, potential energy, total energy and binding energy of an artificial satellite of mass 2000 kg
Last Answer : Calculate the kinetic energy, potential energy, total energy and binding energy of an artificial satellite of mass 2000 ... 6400 km M = 6 1024 kg
Description : Which power plant has minimum operating cost? a) Hydroelectric power plant b) Thermal power plant c) Nuclear power plant d) Gas Turbine Power Plant Ans: A 42. Which of the following have ... a) Hydroelectric power plant b) Thermal power plant c) Nuclear power plant d) Solar electric power plant
Last Answer : Ans: B
Description : Heat energy is converted into electrical energy a. solar cells b. thermocouples c. electric generators d. none
Last Answer : b. thermocouples
Description : Who have the highest energy gamma rays or neutrons produced from nuclear reactor?
Last Answer : Not sure
Description : A nuclear reactor harnesses nuclear energy by A. Nuclear fusion B. Spontaneous fission C. Uncontrolled chain reaction D. Controlled chain reaction
Last Answer : ANSWER: D
Description : Energy is continuously generated in the sun due to _______. (1) Nuclear fusion (2) Nuclear fission (3) Radioactivity (4) Artificial radioactivity
Last Answer : (1) Nuclear fusion Explanation: Nuclear fusion is a nuclear reaction in which two or more atomic nuclei come very close and then collide at a very high speed and join to form a new type of atomic nucleus.
Description : Energy is continuously created in the sun due to – (1) Nuclear fusion (2) Nuclear fission (3) Radioactivity (4) Artificial radioactivity
Last Answer : (1) nuclear fusion Explanation: The central mass of the sun becomes increasingly hot and dense. eventually initiating thermonuclear fusion in its core. It is thought that almost all other stars form ... because some of the mass of the fusing nuclei is converted to energy which is released.
Description : Energy is continuously created in the sun due to: (1) nuclear fusion (2) nuclear fission (3) radioactivity (4) artificial radioactivity
Last Answer : nuclear fusion
Description : What energy conversion does take place in a dynamo when it is in use?
Last Answer : Mechanical energy changes into electrical energy.
Description : Which energy is converted into which energy in the dynamo ?
Last Answer : Mechanical energy is converted into electrical energy in dynamos.
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 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 : 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 : 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 : 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 : 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 : Mechanical Energy into Electrical Energy
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 : 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
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 : converts mechanical energy into electrical energy
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 : Mechanical energy into electrical energy
Description : An artificial satellite is moving in a circular orbit of radius 42.250 km (approx). Calculate its linear velocity if takes 24 hour to revolve around earth.? -Science
Last Answer : Given r =42.250 km , T= 24 hour Linear velocity in circular motion is given by v=2πrT=2×3.14×42.25024=11.05km/hrv=2πrT=2×3.14×42.25024=11.05km/hr
Description : An artificial satellite stays in the orbit around the Earth because (a) The Earth's gravity does not act on the satellite due to the great distance between them (b) The Earth's attraction ... (d) There is an engine in the satellite that constantly applies an upward force to balance its weight
Last Answer : Ans:(b)
Description : What will be If a pendulum clock be taken from the earth to a revolving artificial satellite? -General Knowledge
Last Answer : The answer is 'It will stopaltogether'
Last Answer : answer: