Ammeter voltage drop
What he wrote.^^^^.
1. Is the meter and probes providing consistant and relatively accurate readings? Compare the voltage measurements against some known voltages. Compare the measurement readings against some known resistances.
Wait. Maybe this is it. Lets go over using the multimeter.
The resistance setting should only be used when the power is disconnected.
The voltage setting is used when the power is connected.
2. Voltage should be the same everywhere when everything is off.
This is a the basic scheme of standard 1972 Valiant.
Everything connected to the battery positive is hot.
Key off, lights off, dome light off, brakes off;
Ammeter should show ZERO.
Voltage between battery positive terminal and ground should be the same as voltage to ground at any point that is hot.
For example if its 12.8 Volts across the battery, it should be 12.8 Volts at the dome light socket.
If you think of current like a river of electrons flowing, with all the switches off, the river is blocked. Pressure behind the blockage is the same everywhere. That pressure is the voltage.
What he wrote.^^^^.
1. Is the meter and probes providing consistant and relatively accurate readings? Compare the voltage measurements against some known voltages. Compare the measurement readings against some known resistances.
Wait. Maybe this is it. Lets go over using the multimeter.
The resistance setting should only be used when the power is disconnected.
The voltage setting is used when the power is connected.
2. Voltage should be the same everywhere when everything is off.
This is a the basic scheme of standard 1972 Valiant.
Everything connected to the battery positive is hot.
Key off, lights off, dome light off, brakes off;
Ammeter should show ZERO.
Voltage between battery positive terminal and ground should be the same as voltage to ground at any point that is hot.
For example if its 12.8 Volts across the battery, it should be 12.8 Volts at the dome light socket.
If you think of current like a river of electrons flowing, with all the switches off, the river is blocked. Pressure behind the blockage is the same everywhere. That pressure is the voltage.
