Using Electricity: Resistance

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Author:
crobertsonx
ID:
86367
Filename:
Using Electricity: Resistance
Updated:
2011-05-17 14:10:26
Tags:
using electricity resistance physics
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Description:
Using Electricity: Section 3- Resistance
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  1. How do you measure the current in a circuit?
    an ammeter placed in series
  2. How do you measure the voltage in a circuit?
    a voltmeter placed in parallel
  3. What effect does increasing the resistance have on the current?
    increasing the resistance, decreases the current
  4. what is resistance measured in?
    ohms
  5. What are variable resistors used for?
    to alter the current in a circuit
  6. what is ohms law?
    V=IR
  7. What happens when current is in a wire?
    some electrical energy is converted into heat due to the resistance of the wire
  8. what is power measured in?
    watts
  9. what is electrical energy measured in?
    joules

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