Description : What energy is converted into heat energy when heat is applied at the junction of two different metals ?
Last Answer : When heat is applied at the junction of two different metals, heat energy is converted into electrical energy.
Description : In a photocell light energy is converted into – (1) Potential energy (2) Chemical energy (3) Heat energy (4) Electrical energy
Last Answer : (4) Electrical energy Explanation: Photocells are scientifically known as photo-resistors. A photo-resistor or light dependent resistor (LDR) is a resistor whose resistance decreases with increasing ... by the semiconductor give bound electrons enough energy to jump into the conduction band.
Description : A block of wood initially at rest slides down an inclined plane. Neglecting friction, the kinetic energy of the block at the bottom of the plane is: w) all converted into heat x) equal to its ... kinetic energy at the top of the plane z) dependant on the materials of which the block is made
Last Answer : ANSWER: X -- EQUAL TO ITS POTENTIAL ENERGY (WITH RESPECT TO THE BOTTOM OF PLANE) WHEN IT WAS AT THE TOP OF THE PLANE.
Description : In a photocell light energy is converted into (1) potential energy (2) chemical energy (3) heat energy (4) electrical energy
Last Answer : electrical energy
Description : The temperature of water at the bottom of a large waterfall is higher than that of the water at the top, because - (1) the falling water absorbs heat from the Sun. (2) the water at the bottom has ... of the falling water is converted into heat. (4) rocks on the bed of the river give out heat.
Last Answer : (3) the kinetic energy of the falling water is converted into heat. Explanation: The water gains kinetic energy as it falls down and loses its potential energy. Assuming no other losses, part of the kinetic energy gain of water is converted into heat, raising the temperature of water.
Description : How is solar energy converted into heat energy?
Last Answer : Solar energy falling on the surface of the earth is converted into thermal energy. The heat generated is stored in solar collectors. It is used for purposes like heating of water and cooking of food.
Description : Boiler efficiency is a measure of how effectively _______ energy in fuel is converted into heat energy in steam going to the turbines A Chemical energy B Heat energy C Thermal energy D All of the above
Last Answer : A Chemical energy
Description : When brakes are applied on a moving vehicle the kinetic energy is converted to A. Mechanical energy B. Heat energy C. Electrical energy D. Potential energy
Last Answer : B. Heat energy
Description : The first law of thermodynamics may be expressed in the following equivalent a. the net heat transfer id equal to the network b. the sum of the total energy forms leaving the system boundary is ... neither be created nor destroyed but only converted from one form to another d. all of the above
Last Answer : all of the above
Description : Heat energy is converted into electrical energy a. solar cells b. thermocouples c. electric generators d. none
Last Answer : b. thermocouples
Description : Electrical energy is converted to heat at the rate of a. IRt b. I 2R c. I 2Rt d. VIt
Last Answer : b. I 2R
Description : The temperature of water at the bottom of a large waterfall is higher than that of the water at the top. because (1) the falling water absorbs heat from the Sun. (2) the water at the bottom has greater ... of the falling water is converted into heat. (4) rocks on the bed of the river give out heat.
Last Answer : the kinetic energy of the falling water is converted into heat.
Description : why reactive ohm cannot converted electrical energy into heat?
Last Answer : Because it describes the resistance of element that store energy rather than dissipate energy as heat
Description : Which energy is converted into which energy when iron is converted to magnet ?
Last Answer : When iron is converted to magnet, magnetic energy is converted into heat energy.
Description : What energy is converted into chemical energy by burning coal and natural gas in a power station ?
Last Answer : Chemical energy is converted into heat energy by burning coal and natural gas in the power station.
Description : Solar energy is converted into chemical energy during – (1) Transpiration (2) Photosynthesis (3) Diffusion (4) Osmosis
Last Answer : (2) Photosynthesis Explanation: In photosynthesis, solar energy is converted to chemical energy. The chemical energy is stored in the form of glucose (sugar). Carbon dioxide, water, and sunlight are ... captured from the sun into chemical energy that can be used to fuel the organism's activities.
Description : At the end of communication system, the signal is converted from radio to A. sound B. mechanical energy C. kinetic energy D. potential energy
Last Answer : sound
Description : The principle that energy may be converted from one form to another but it cannot be either created or destroyed is: w) First Law of Thermodynamics. x) Second Law of Thermodynamics. y) Third Law of Thermodynamics. z) Principle of photoelectricity.
Last Answer : ANSWER: W -- FIRST LAW OF THERMODYNAMICS.
Description : Solar energy is converted into chemical energy during (1) Transpiration (2) Photosynthesis (3) Diffusion (4) Osmosis
Last Answer : Photosynthesis
Description : What kind of energy is converted into light energy as a result of the action of light on a photovoltaic cell ?
Last Answer : Answer : The action of light on a photovoltaic cell results in the conversion of light energy into electrical energy.
Description : The reactive power drawn by a motor from an AC generator is the power which is _____________. A. used to establish the magnetic field of the motor B. lost in overcoming friction in the ... by current flow through the windings D. transmitted directly through the rotor shaft to perform useful work
Last Answer : Answer: A
Description : Linear motion of the piston in a heat engine is converted into circular motion by
Last Answer : Crankshaft.
Description : . If a single tube pass heat exchanger is converted to two pass, then for the same flow rate, the pressure drop per unit length in tube side will (A) Increase by 1.8 times (B) Decrease by 2 2 (C) Increase by 2 16 (D) Remain unchanged
Last Answer : (C) Increase by 2 16
Description : By which of the following methods can CH3CONH2 be converted to CH3CN? (a) Oxidize with Na2Cr2O7/H+ (b) Heat with concentrated sulfuric acid (c) Heat to 200°C (d) Warm with P2O5
Last Answer : Warm with P2O5
Description : The cast iron when heated to red heat with powdered red haematite in an oven for increasing its toughness, is converted to (A) Grey cast iron (B) White cast iron (C) Mottled cast iron (D) Toughed cast iron
Last Answer : Answer: Option C
Description : When an alternating current passes through an ohmic resistance the electrical power converted into heat is?
Last Answer : When an alternating current passes through an ohmic resistance the electrical power converted into heat is true power.
Description : A galvanometer can be converted to a voltmeter by connecting – (1) a high resistance in parallel (2) a high resistance in series (3) a low resistance in series (4) a low resistance in parallel
Last Answer : (2) a high resistance in series Explanation: In order to convert a Galvanometer into voltmeter, a very high resistance known as "series resistance" is connected in series with the ... made for enabling the galvanometer to measure the potential difference across any component in a circuit.
Description : A galvanometer can be converted into a voltmeter by connecting with it a – (1) high resistance in parallel (2) low resistance on parallel (3) high resistance on series (4) low resistance in series
Last Answer : (3) high resistance on series Explanation: In order to convert a Galvanometer into voltmeter, a very high resistance known as "series resistance" is connected in series with the galvanometer ... made for enabling the galvanometer to measure the potential difference across any component in a circuit.
Description : Alternating current is converted into direct current by a – (1) Transformer (2) Dynamo (3) Oscillator (4) Rectifier
Last Answer : (4) Rectifier Explanation: A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification.
Description : Process in which A.C is converted into D.C is called A. induction B. rectification C. inversion D. dispersion
Last Answer : rectification
Description : Which one of the following is the way in which a galvanometer is converted into a voltmeter? Is it by connecting: w) a high resistance coil in parallel with its moveable coil x) a low resistance ... coil in series with its moveable coil z) a low resistance coil in series with its moveable coil
Last Answer : ANSWER: Y -- A HIGH RESISTANCE COIL IN SERIES WITH ITS MOVEABLE COIL
Description : A galvanometer can be converted to a voltmeter by connecting (1) a high resistance in parallel (2) a high resistance in series (3) a low resistance in series (4) a low resistance in parallel
Last Answer : a high resistance in series
Description : A galvanometer can be converted into a voltmeter by connecting with it a (1) high resistance in parallel (2) low resistance on parallel (3) high resistance on series (4) low resistance in series
Last Answer : high resistance on series
Description : Alternating current is converted into direct current by a (1) transformer (2) dynamo (3) oscillator (4) rectifier
Last Answer : rectifier
Description : Bernoulli's principle shows that, at points in a moving fluid where the potential energy change is very small A. the pressure is low where the velocity is low and similarly, the pressure is ... of the moving fluid D. pressure remain independent of the speed of the stationary fluid
Last Answer : the pressure is low where the velocity is high and conversely, the pressure is high where the velocity is low
Description : Have they successfully converted energy to mass?
Last Answer : They?
Description : Why does a plastic bag make crunching sounds when we crush it? What energy is getting converted to noise here?
Last Answer : It's not molecular. It is more likely the stiffness of the material and its resistance to being folded. If you take a plastic cup and squeeze it in your hand, you will hear a cracking sound and it may ... and damage. If you want to induce change on a molecular level of a plastic, you can heat it.
Description : What is the name of the scientist who stated that matter can be converted into energy? -General Knowledge
Last Answer : The answer is 'Einstein'
Description : Food is converted into energy in which of the cellular organelles of cell? -Do You Know?
Last Answer : Mitochondria Mitochondria are known as the powerhouse of the cell. They are organelles that demonstrate like a stomach related framework that takes in supplements, separates them, and makes energy-rich ... In cell breath sugar with the assistance of oxygen is separated into ATP (energy particle).
Description : In which processes light energy is converted into chemical energy? -Do You Know?
Last Answer : Photosynthesis Photosynthesis is the cycle where light energy is changed over to compound energy as sugars. In a cycle driven by light energy, glucose atoms (or different sugars) are developed from water and carbon dioxide, and oxygen is delivered as the result.
Last Answer : The answer is 'Albert Einstein'
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 : True or false: energy from moving water can be converted into electricity?
Last Answer : 1
Description : Which energy is converted into which energy in a steam engine ?
Last Answer : Heat energy is converted into mechanical energy in a steam engine.
Description : Which energy is converted into which energy by rubbing hands ?
Last Answer : Mechanical energy is converted into heat energy by rubbing hands.
Description : Which energy is converted into which energy while ironing clothes ?
Last Answer : Electric energy is converted into heat energy when ironing clothes.
Description : Which energy is converted into an energy magnet by which energy ?
Last Answer : Electromagnets convert electrical energy into magnetic energy.
Description : Which energy is converted into which energy in the dynamo ?
Last Answer : Mechanical energy is converted into electrical energy in dynamos.
Description : Process in which light energy is converted into chemical energy (organic compounds) is called
Last Answer : Process in which light energy is converted into chemical energy (organic compounds) is called
Description : During muscle contraction (a)____ energy is converted into (b)____ energy
Last Answer : During muscle contraction (a)____ energy is converted into (b)____ energy