End of Group 9 Written Test

Electricity is the flow of:

• Protons.

• Neutrons.

• Electrons.

• Atoms.

What is the conventional direction of DC current flow?

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Briefly define an insulator?

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What is the maximum permissible voltage drop generally accepted in an operational circuit?

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2,500 Ohms can also be represented as:

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Insulators are materials, which offer a lot of opposition to the flow of current, this is because they possess relatively few free:

• electrons.

• protons.

• neutrons.

• atoms.

When measured at different points the current in a series circuit will:

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When measured at different points the current in a parallel circuit will:

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Briefly define a Diode.

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An LED is a type of:

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