Contrast generators and electric motors.

Answers

Answer 1

Answer:

Answer:

A generator produces electricity when a conducting wire is rotated between magnetic field. Mechanical energy is converted to electrical energy. Fleming's right hand rule is used.

An electric motor does mechanical work using electrical energy. A current carrying coil is placed in magnetic field. A torque is exerted on the coil and it rotates. Electrical energy is converted to mechanical energy. Fleming's left hand rule is used.

Answer 2

Answer: generators take mechanical and output energy. electric motors take the input of electricity.

Related Questions

File:No file chosenWhenever electrons of an atom unite with electrons of another atom, a chemical change occurs.What is the cause?What kind of change occurs? Water expands when it freezes. Expanded ice floats on lakes and ponds.What causes the water to expand?What is the effect on the expanded ice?Some metals will expand when heated. Expanded metals may bend.What causes the metal to expand?What are the effects of the expanded metal?Gases expand when heated. An expanded gas occupies more space.What causes the gas to expand?What are the effects of the expanded gases?Answer the above questions and give an example of a cause and effect relationship. See if you can think up a cause and effect relationship using acids, bases, and neutralization.
Jake drops a book out of a window from a height of 10 meters. At what velocity does the book hit the ground? Answer choices: A: 7.0Meters/Second B: 10Meters/Second C: 14Meters/Second D: 28Meters/Second
Find the force, in N that does 0.0284 kilojoules of work in moving a book a distance of 4.00 meters
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What is the KE of a bird, mass 40g flying at 23m/s?

Answers

Answer:

230

Explanation:

You do Ke = kinetic times distance divide by mass

A lithium oxide compound is represented by which formula?

Answers

Li2O is the molecular formula for lithium oxide.

the answer is Li2O

good luck

A 0.50 kilogram ball is held at a height of 20 meters. What is the kinetic energy of the ball when it reaches halfway after being released?

Answers

(M G H)=(0.5 x 9.8 x 10) = 49 joules.

What is the entropy change of 450 g of water when it changes from liquid to steam at its usual boiling point? For water, $L_F$ = 0.334 MJ/kg, $L_V$ = 2.26 MJ/kg.

Answers

Answer:

2726.54 J/K

Explanation:

Entropy change = $(m* L_(v))/(T)$

where

m = mass of water = 450g = 0.45kg

$L_(v)$ = 2.26 MJ/kg = 2260000 J/kg

T = temperature at which water change from liquid to steam = 100 degree Celsius = 272 + 100 = 373 degree kelvin.

Entropy change = $(0.4* 2260000)/(373)$ = 2726.54 J/K

Can someone tell me some variables that could affect how far a ski jumper could travel in the air and explain the science behind it ? Thanks you will help me a lot if you can answer it !

Answers

Some things you could take into consideration are the weight of the jumpers. There height, well more like overall mass. Gravity would be another key factor. The angle at which she jumped could be another variable. Wind resistance could be another important thing. How far she is attempting to jump is an important variable.

Those are just some of the basic things.

Hope I helped. :)

Performance in ski jumping is determined not only by the motor abilities of the athlete, but alsoto a large extent by the aerodynamic features of the equipment used and by a low body weight. Manyski jumpers were extremely underweight to the point of having a body mass index (BMI =m/h2of16.4 kgm−2(heighth= 1.73m, body massm= 49 kg)

Explain at least two differences between justice system laws and scientific laws.

Answers

The adversarial system is rigid – the roles are proscribed – the prosecutor wants to convict, the defendant wants a decision of not guilty. They are not just allowed but expected to bias their presentation, trusting the truth to come out between the adversaries. Science certainly has its sides of partisanship and bias. But these sides are self-imposed and can be abandoned at any time. While a prosecutor should not lie or hide evidence, and should drop a case if they become convinced the defendant is innocent, they wake up in the morning with no choice about which side of the argument they will come down on. In the criminal justice system the advocates are rigidly fixed in their roles and the jurors are rigidly neutral (the process to find a random neutral jury took as long as the trial itself). In science, the advocates are the same people as the jurors. And as a result they have to be willing to be flexible and change their minds. A good scientist shouldn’t have a pre-determined rigid answer to a question.
Lack of investigation – we jurors were told over and over not to investigate the situation ourselves. We were to make our decision only on the basis of the evidence presented to us. I can tell you in the case I was on there were at least two whopping big questions hanging over the case that nearly every juror in the room identified as very important but not addressed by either lawyer. Either one of them (whether the defendant’s schedule allowed time to drink before being stopped in the car, whether a particular medical condition could affect breathalyzer tests) could have changed the outcome. We could have answered one of these with 10 minutes on google and the other with some very simple subpoena of records. But we couldn’t use any of this. Scientists obviously are the opposite – if they need more information, they are expected to go get it before making an opinion.
Reliance on personal testimony – although science and trials share a focus on evidence, trials recognize testimony of individual people under oath as a major form of evidence. They certainly acknowledge the possibility of lying and explicitly instruct jurors to decide what testimony they believe. My case was unusual in that there was so much video footage, but still a majority of the case came down to testimony by the police officers, and most cases even a few years ago would have had only testimony. Science on the other hand, doesn’t accept testimony. Or does it? What else is the methods and results section of a paper? I’m on the fence whether science is so different on this one.

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Why does lowering the centre of gravity increase stability?

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