# Faraday's Law (Grades 11-12)

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## Faraday's Law

**Instructions:**
Read each question carefully. Choose the answer that best fits the question. Short answer response questions must be responded to in complete sentences. If the question involves calculations, you must show all your math work.

1.

The Faraday constant is the magnitude of electric charge per , and can be used to find the amount of an element that has been oxidized.

- degree K
- mole of electrons
- unit area

2.

In electrolysis, one can find the amount in moles of the element that has been oxidized, by dividing by the Faraday constant.

- the temperature in degrees
- the electric potential
- the amount of charge
- the total mass of substance

3.

According to Faraday’s first law of electrolysis, the mass of a substance altered at an electrode during electrolysis is directly proportional to the .

- quantity of electricity transferred at that electrode
- temperature of the electrolyte

4.

Faraday constant, [math]F[/math], can be given by the elementary charge multiplied by the .

- Boltzmann constant
- Stefan-Boltzmann constant
- Gas constant
- Avogadro constant

5.

What is the equation for Faraday’s combined laws? Be sure to explain the meaning of each variable.

6.

What is the value of Faraday's constant? What does it represent?

7.

According to , the changing magnetic flux through a coil of wire will induce an emf in the wire that is proportional to the number of loops and the rate of change of the magnetic field.

8.

How is Faraday's law expressed in equation form? Be sure to include an explanation of the variables involved.

9.

Explain, in detail, what a magnetic flux is, how it can be determined, including the equation for it, and how it can be applied to a real world situation.

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