# 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
- none of the above

2.

In electrolysis, which quantity must be divided by the Faraday constant to determine the number of moles of the element that is oxidized?

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

3.

Faraday’s first law of electrolysis says that a substance's mass changed at an electrode during electrolysis is directly proportional to the

- amount of electricity transferred at said electrode.
- temperature of the electrolyte.
- none of the above.

4.

Which quantity must be multiplied by the elementary charge to find the Faraday constant, F?

- 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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