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3 years ago

Neglecting losses in a transformer, it's input and output ______ are equal.

Physics

2 answers:

Mila [183]3 years ago

7 0

Neglecting losses in a transformer, it's input and output power are equal. (C)

Alex17521 [72]3 years ago

6 0

The input power in the transformer are equal to the output power of a transformer.

Answer : Option C

Explanation:

The transformers have power on either side as input or output to be constant. This is so because the transformers are the electrical device which transfer the energy between the circuits. There are two types of transformers, step up transformers and step down transformers.

Both follows the following expression of power = voltage x current. According to the type of transformer, the turns of wire and voltage and current are kept varying but the power remains constant.

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What is the example of stop moving

barxatty [35]

Answer:

Example:

A car applying brake.

A player catching a bowl.

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3 years ago

Fig. 2.1 shows the extension-load graph for a spring.

trapecia [35]

Answer:

(1) Hooke's law

(2) a) Extension is directly proportional to the applied load

b) The starting point of the graph is the origin (0, 0) or absence of load, no extension

Explanation:

(1) The law obeyed by the spring is known as Hooke's law which states that the extension or compression, x, of a spring proportional to the applied force, F

F = -k × x

Where;

k = The spring constant

(2) Given that the law mathematically is F = -k × x

The two features of the graph that show that the law is obeyed are;

a) The extension increases as the load is increased

b) The extension is zero when the there is no applied load.

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3 years ago

Help please physics!!!

Hitman42 [59]

Answer:

I think c is the answer.....

6 0

3 years ago

Read 2 more answers

Science 8 - Electromagnetic Spectrum Worksheet

yuradex [85]

Answer:

1. Electromagnetic spectrum

2. Electromagnetic radiation

3. Radiant energy

4. Infared waves

5. Electricmagnetic radiation or Infared waves

6. Radio waves

7. Gamma rays

8. Radio waves

9. Ultraviolet rays

10. This is because it doesn’t contain water or a substance.

11. You should use sunscree and a hat to protect your skin from UV light that might cause skin cancer.

Hope this helps

7 0

3 years ago

A golf ball is whacked in a direction 25 degrees south of the east axis. The ball travels 125m. What are the east and north comp

Natalka [10]

We are given:

Direction of motion: 25 degrees south of the east axis

Distance covered = 125 m

East component of the Ball:

this component is denoted by green color in the image

Once we drop a perpendicular from the end of the direction vector on the x-axis, we get a right angled triangle

The magnitude of the side of the triangle on the x-axis denotes the east component of the ball

Using trigonometry, we find that the east component of the ball is:

125 * Cos(25 degrees)

125 * 0.9 = 112.5 i (here, i denotes rightward direction on the x-axis)

North Component of the Ball:

this component is denoted by blue color in the image

Using trigonometry, we find that the North component of the ball is:

125* Sin(25 degrees) (-j) [j denotes upward movement on the y-axis, since the vector is acting downwards, we have used '-j']

125 * 0.42 (-j)

52.5 (-j) = -52.5 j

Therefore the direction vector of the ball is 112.5 i - 52.5 j

where 112.5 i is the East Component and -52.5 is the North Component

3 0

3 years ago