@16:19 you put 1 amp across the shunt as an example and then say the milivolt reading will be 7.5. If it is proportional shouldn't it be 1 amp/100 amps times 75 millivolts which equals 0.75 milivolts?
You are on the right track, A 1/100 amps shunt is designed to produce a voltage drop proportional to the current passing through it. For a shunt rated at 1/100 amps, this means that for every 1 amp of current, the shunt will produce a voltage drop of 1/100 volts, or 10 millivolts (mV). If you divide 1/100 you get .01 of a volt = 10 millivolts.
To measure amps the meter has to be inline with the circuit. Volts can be measured across any two points, you do not need a shunt to measure volts. Watts is a calculation of volts * amps, so no measurement is needed.
@16:19 you put 1 amp across the shunt as an example and then say the milivolt reading will be 7.5. If it is proportional shouldn't it be 1 amp/100 amps times 75 millivolts which equals 0.75 milivolts?
You are on the right track, A 1/100 amps shunt is designed to produce a voltage drop proportional to the current passing through it. For a shunt rated at 1/100 amps, this means that for every 1 amp of current, the shunt will produce a voltage drop of 1/100 volts, or 10 millivolts (mV). If you divide 1/100 you get .01 of a volt = 10 millivolts.
Can a shunt also show volts and watts, or just amps?
To measure amps the meter has to be inline with the circuit. Volts can be measured across any two points, you do not need a shunt to measure volts. Watts is a calculation of volts * amps, so no measurement is needed.
@@JoediyLab that all makes sense. Thank you.
Thanks