All categories

3 years ago

What is the role of a commutator in an electric generator

Physics

1 answer:

Verdich [7]3 years ago

6 0

Answer:

The role of a commutator in a electric generator is a rotary switch (in certain types of electrical generators that periodically reverse the current direction between the rotor and the external circuit by that reversing it in the current direction teb rotating windings all half turn a force called torque is produced)

You might be interested in

An airplane flies 250.0 km at 300 m/s. How long does this take?

givi [52]

Im not sure if this is physics or mathematics. but if 300 msec then per minute this will equal to 300 X 60 sec =18000 m per minute

3 0

3 years ago

Read 2 more answers

The dimensions of information systems are people, organizations, and information technology.

Alchen [17]

Answer:

false

Explanation:

5 0

3 years ago

Find by means of a vector diagram the resultant of two forces of 7N and 3N acting at right angle to one another

melisa1 [442]

Answer:

Image result for Find by means of a vector diagram the resultant of two forces of 7N and 3N acting at right angle to one another

The resultant of two forces of 7N and 3N acting at a right angle to one another is √58 N. Explanation: Let the magnitude of the force of 7N be denoted as “F₁” on the x-axis and the magnitude of the force of 3N be denoted as “F₂” on the y-axis.Oct 22, 2019

Explanation:

6 0

3 years ago

What happens to the velocity of a sound wave in the air if the temperature of the air increases?

posledela

The velocity of the wave also increases, because molecules at higher temperatures have more energy.

7 0

3 years ago

Read 2 more answers

A kettle consumes 198 kJ to boil water. If 168 kJ was used to boil the

Svetlanka [38]

The efficiency of the kettle is 117.9%

<h3>What is efficiency?</h3>

Efficiency is used to measuring how much work or energy we can conserve in a process. In other words, it is like comparing the output of the energy to the input of the energy in any given system.

It is also define as the ratio of Energy Input to the Energy Output. To express it in percent multiply it by 100.

Here, Efficiency = Energy output / Energy input

$η =\frac{W_{out} }{W_{in} } * 100$

$η = \frac{198kJ}{168kJ} * 100$

= 117.9%

So , the efficiency is 117.9%

For more Efficiency related question visit:

brainly.com/question/13110830

#SPJ1

4 0

2 years ago