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3 years ago

what device is made of coils of wire with an electrical current passing through it in order to generate a magnetic field

Physics

1 answer:

Umnica [9.8K]3 years ago

8 0

Transformer

<u>Explanation:</u>

A transformer is a device with two or more magnetically coupled windings. A time varying current in one coil (primary winding) generates a magnetic field which induces a voltage in the other coil (secondary winding). Transformers are capable of either increasing or decreasing the voltage and current levels of their supply, without modifying its frequency, or the amount of electrical power being transferred from one winding to another via the magnetic circuit. There are two types of transformer:

1. Step up transformer - increases voltage

2. Step down transformer - decreases voltage

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3 years ago

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3 years ago

A car starts from rest and travels for 5.8 s with a uniform acceleration of 1.6 m/s² in the negative direction. What is the fina

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Final velocity of the car will be -9.28 m/sec

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3 years ago

A race car circles 10 times around a circular 8.0-km track in 20 min.

Otrada [13]

Find the average speed and the average velocity.

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Average speed = 80,000 m / 1200 s = 66.67 m/s

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Given that the race car made complete circles the final poin is the same initial point, then its displacement is zero and the average velocity is zero too.

6 0

4 years ago

Read 2 more answers