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Sci Principals 1
Scientific Principals Level 1
Term | Definition |
---|---|
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 |