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Sci Principals 1

Scientific Principals Level 1

TermDefinition
Ohm's Law V=IR
Power Equation 1 P=IV
Power Equation 2 P=IxIxR
Parallel Resistors (2of) R1xR2/R1+R2
How do I work out power in a transformer? P=IV
How do I work out A2 in a transformer? work out the power on side one, then the volts per turn. times V/turn by the number of turns on side 2, then divide the power by the new voltage.
Resistance in a parallel circuit? reciprocals
Do Volts or Amps split in a series circuit? volts
Do Volts or Amps split in a Parallel circuit? amps
Will amps chose the path of high or low resistance? low
What is PD? Potential Difference (volts)
Do I measure volts in series or parallel with the resistor? parallel
do I measure amps in series or parallel with the resistor? series
what is the device for measuring Watts called? Wattmeter
What is the device for measuring Amps called? Ammeter
What is the device for measuring Volts called? Voltmeter
What is the device for measuring Resitance called? Ohmmeter
Transformers change volts and _____ but ____ stays the same the current changes, the watts stay the same
a resitor in a circuit is more easily likened to what in a water circuit? a radiator
what can influence the resistance of a circuit? the length or width of a conductor, the number of paths the current can chose between, the number of resistances in the circuit
Created by: akerr
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