1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
hram777 [196]
3 years ago
5

An autotransformer is used to reduce the voltage of a 100-kilovolt amp, 480-volt secondary of an isolated type transformer, to s

upply a 100-kilovolt amp load with 277 volts. What size autotransformer is needed? (Use the co-ratio to determine the size.)
Physics
1 answer:
tigry1 [53]3 years ago
5 0

Answer:

42KVA

Explanation:

Given data

High Voltage (HV)= 480V

Low Voltage (LV)= 277V

Fo find

Size of transformer=?

Solution

To find the size of transformer here we use the co-ratio.The Co-ratio is given as:

Co-Ratio= (HV - LV)/HV

where

HV is High Voltage

LV is Low Voltage

Now put the values we get

Co- Ratio=(480-277)/480=.42

So the size of transformer is 42KVA

You might be interested in
A ____________ galaxy has arms of gas and dust; where as _____________ galaxy is a category of galaxy that does not have a disti
Jet001 [13]

Answer:

spiral, an irregular

Explanation:

i took the test :)

3 0
3 years ago
No matter how well we get along with our parents as adolescents, there comes a time when we need to break away and assert our ow
KonstantinChe [14]

Answer: I never said anything to them but if i did it would be "I need a break from you, i love you but sometimes I have to find the path on my own." i would say this if i wasn't scared to hurt them.

Explanation:

5 0
3 years ago
Vectors A and B lie in the xy-plane. Vector A has a magnitude of 19.1 and is at an angle of 125.5º counterclockwise from the +x-
Nady [450]

Answer:

a!aaaaaaaaaaaa!aaaaaa

Explanation:

l

8 0
3 years ago
Calculating ph how is ph related to the concentration of hydronium ions. True or False
Dmitry_Shevchenko [17]

I think this is TRUE. Ph is calculating the acidic acids in water. And you need to know the concentration of hydronium ions. Hope this helped !

7 0
3 years ago
Which type of reaction occurs without being started by some outside force?
Nostrana [21]
A spontaneous reaction is a term that is best describe to a type of reaction wherein it is started without even with the help of an outside force. In addition to that, this kind of reaction is commonly driven by the forces of enthalpy and entropy which are essential concepts to thermodynamics.
8 0
3 years ago
Other questions:
  • What parts are found in an electric generator
    14·2 answers
  • 1.5 Kg ball moves in a circle that is 0.4 m radius at a velocity of 5.40 m/s Calculate its centripetal acceleration. *
    5·1 answer
  • A 27.4 kg dog is running northward at 2.19 m/s , while a 7.19 kg cat is running eastward at 2.78 m/s . Their 75.7 kg owner has t
    10·1 answer
  • determine the pressure exerted on the surface of a submarine cruising 175 ft below the free surface of the sea. assume that the
    12·1 answer
  • One way to measure g on another planet or moon by remote sensing is to measure how long it takes an object to fall a given dista
    13·1 answer
  • Current is produced when charges are accelerated by an electric field to move to a position of lower
    15·1 answer
  • 400 Kelvin to degrees Celsius​
    10·2 answers
  • How do insects aid in crime scene investigations
    12·1 answer
  • A rod of length L and electrical resistance R moves through a constant uniform magnetic field ; both the magnetic field and the
    15·1 answer
  • a driver is going at 120km h and sees a barrier 60.0 m ahead it takes 5secounds to apply the brakes and decelerates at 12m does
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!