Please explain volts, ohms, etc.
Please explain volts, ohms, etc.
(OP)
Wish I still had my old physics text book.
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Please explain volts, ohms, etc.
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Please explain volts, ohms, etc.Please explain volts, ohms, etc.(OP)
Wish I still had my old physics text book.
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RE: Please explain volts, ohms, etc.
RE: Please explain volts, ohms, etc.
Voltage=Pressure (Measured in Volts)
Current=Flow Rate (Measured in Amps)
Resistance=Resistance (Measured in Ohms)
Power=Power (Measured in Watts)
Assuming simple DC:
1Amp x 1Volt = 1Watt (P=IE)POWER is as easy as PIE
1Amp= 1Volt x 1Volt (E=IR)
All simple problems can be solved by these 2 Equations
Resistance in series is Additive R1+R2+R3...=Rtotal
Resistance in parallell is solved by
1/Rtotal=1/((1/R1)+(1/R2)+(1/R3)+...)
Therefore the sum of parallell resistances must be less than the lowest resistance
DC is Direct Current (Your car battery)
AC is Alternating Current (Your House)
Frequency (Measured in Hertz) is the cycles per second of AC Power, typically 60Hz in the US and 50Hz in Europe (Although some special applications like aircraft use 400Hz)
Some other notes, typical household voltages are 110-120 Volts AC (US) with 220-240 Volts AC being used for large appliances, 220-240 Volts is widely used in Europe
Most cars use 12V DC but older cars may use 6V Dc
A typical battery (AA,C,D) cell in the US is 1.5 Volts
Most US Houses have a 200 Amp Service
And finally 3 KiloWatts=4 HorsePower (Roughly, it's a thumb rule NOT an EXACT conversion)
Hope that Helps a Little
RE: Please explain volts, ohms, etc.
Unfortunately, there are some "engineers" who frequent these forums who would have responded to this question in a very ugly fashion. I'm very glad to see that did not happen here.
Congrats and thanks to those patient few who are willing to discuss the basics and help those who ask for help.
RE: Please explain volts, ohms, etc.
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