What do a shunt do , anyway ?
I was looking at a meter and it said shunt required , Why ?
Forum Discussion
ScottG wrote:
My professor liked to ask his unwitting class how many types of meters there are. His answer was one; the volt meter.
The amp meter is actually a volt meter with different markings.
With a shunt type meter, that's pretty much true.
For smaller currents, there are actual analog DC ammeters that don't measure the voltage across a shunt. They have a coil driving the meter that's wound with a few turns of heavy wire, and respond to the magnetic field that's directly proportional to the current. (Indeed, analog voltmeters are arguably really ammeters as well, as it's the current through the coil in the meter that drives the movement.)
