Power
Voltage
Resistance
Current
Power Sources
100
Power measures the amount of _______ done.
What is WORK?
100
Formula that expresses the relationship of R and I
What is I x R
100
Formula in ohm's law to find ohms
What is R = E over I
100
Formula to find current with ohms law
What is I = E over R
100
The word sum means
What is to add?
200
Formula used to find maximum current carried by a resistor when you know that resistors ohms and watt rating
What is I= square root of R over P
200
Different states in the USA use different voltages up to 600 volts in single family home. TRUE / False
What is False
200
Current flows any time voltage is present in a series DC circuit?
What is NO? WHY?
200
Any load device that exceeds it's voltage, current or wattage rating would most likely be.
What is Damaged?
300
Power dissipated by each load in a series circuit is added together (sum) is equal to _____ ________.
What is total power?
300
Without a load you have NO circuit
What is Correct? WHY?
300
Current flows by pressure applied by the voltage. (TRUE / FALSE)
What is True? Why?
300
As the current flows through a series circuit increases, the total POWER dissipated in each component will ( increase / decrease
What is INCREASE
400
A decrease in voltage would result in a ___________ in ______.
What is Decrease? Current?
400
Any series circuit without resistance can still have current flow.
What is NO any circuit is consider to have some type of load.
400
Two power sources used in USA
What is AC and DC?
500
Formula that expresses total power
What is P total = I total squared times R total
500
All components use resistance. ___________ is the result of using resistance
What is POWER?
500
Current can be read any where in a circuit as long as you place the leads ____ _______ with the circuit.
What is IN SERIES?
500
Two lamps are rated 100 watt and 150 watt. Which one has the higher POWER OUTPUT rating and why
What is 150 watt uses more CURRENT, more LIGHT (work) being produced?
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