# Faraday's Law of Electromagnetic Induction

• MrDMD83
In summary, a copper wire with a radius of 13 cm forms a single circular loop and is exposed to a magnetic field that increases from 0 to 0.50 T in 0.45 seconds. The wire has a resistance per unit length of 3.3 x 10-2 /m. The question is asking for the average electrical energy dissipated in the wire's resistance, which should be in Joules. However, the person asking for help is requested to show their work before receiving assistance.

#### MrDMD83

A piece of copper wire is formed into a single circular loop of radius 13 cm. A magnetic field is oriented parallel to the normal to the loop, and it increases from 0 to 0.50 T in a time of 0.45 s. The wire has a resistance per unit length of 3.3 10-2 /m. What is the average electrical energy dissipated in the resistance of the wire? The answer should be in Joules.

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## What is Faraday's Law of Electromagnetic Induction?

Faraday's Law of Electromagnetic Induction states that a changing magnetic field can induce an electric current in a conductor, and the magnitude of the induced current is directly proportional to the rate of change of the magnetic field.

## Who discovered Faraday's Law of Electromagnetic Induction?

Michael Faraday, a British scientist, discovered the law in the early 19th century through his experiments with electricity and magnetism.

## How does Faraday's Law apply to generators?

In generators, Faraday's Law is used to convert mechanical energy into electrical energy. As the magnetic field of a spinning rotor changes, it induces an electric current in the surrounding coils of wire.

## What is the difference between Faraday's Law and Lenz's Law?

Faraday's Law describes the relationship between a changing magnetic field and an induced electric current, while Lenz's Law states that the direction of the induced current will oppose the change in the magnetic field that caused it.

## How is Faraday's Law used in everyday technology?

Faraday's Law is used in various technologies such as generators, transformers, and induction cooktops. It also plays a crucial role in the operation of electric motors, power plants, and many other electrical devices.