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Summary Electric circuits - IEB Grade 10,11 & 12 $2.71   Add to cart

Summary

Summary Electric circuits - IEB Grade 10,11 & 12

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Comprehensive notes on electric circuits for everything you need to know for finals. These notes were handwritten on an Ipad (make for excellent viewing quality. Done using IEB SAGS guidelines and material from the Mind Action series physics textbooks.

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  • May 22, 2020
  • 7
  • 2019/2020
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Available practice questions

Flashcards 19 Flashcards
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Some examples from this set of practice questions

1.

Define EMF

Answer: Electromotive force, it is the total energy supplied per coulomb of charge by the cell.

2.

Define current

Answer: The rate of flow of charge. Symbole = I Unit = Ampere (A)

3.

Define potential difference

Answer: Potential difference/ Voltage is the work done per unit positive charge Symbole = V Units = Volts (V)

4.

Define resistance

Answer: Resistance is a material\'s opposition to the flow of electric current Symbole = R Units = Ohm\'s (Ω)

5.

State Ohm\'s law

Answer: Current through a conductor is directly proportional to the potential difference across the conductor at a constant temperature.

6.

State 4 factors that influence resistance.

Answer: Length Thickness Material Temperature

7.

What is internal resistance? (Definition not required by IEB, just understand and know what it is)

Answer: Internal resistance usually means the electrical resistance inside batteries and power supplies that can limit the potential difference that can be supplied to an external load.

8.

What is a non-ohmic conductor?

Answer: Conductors that do not obey Ohm\'s law. Resistance changes

9.

What are examples of non-ohmic conductors?

Answer: Diodes, Transistors, semiconductors, light bulbs.

10.

Define power.

Answer: The rate at which energy is transferred to a component to perform a function.

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