Electrical Resistance

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  • Created by: Maza2999
  • Created on: 01-04-14 13:13
What is resistance measured in?
Ohms Ω
1 of 5
What causes the resistance in a wire to increase, and the current to decrease?
The length or the thickness of the wire increasing.
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Why are resistors added to a circuit?
To reduce the current flowing
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What is a rheostat?
A rheostat is another name for a variable resistor, whose resistance can be changed to change the flow of a current.
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How do you calculate resistance?
Resistance = voltage ÷ current
5 of 5

Other cards in this set

Card 2

Front

What causes the resistance in a wire to increase, and the current to decrease?

Back

The length or the thickness of the wire increasing.

Card 3

Front

Why are resistors added to a circuit?

Back

Preview of the front of card 3

Card 4

Front

What is a rheostat?

Back

Preview of the front of card 4

Card 5

Front

How do you calculate resistance?

Back

Preview of the front of card 5

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