Using an Ammeter as a Current load or shunt load

[stanleystan]

When do you use an Ammeter as a current load or shunt load?

What kind of circuits would you use an Ammeter as a current load or shunt load?

Is it used like this when testing lamps?

 

[barry]

I don't understand your question. An ammeter is not a load,it is essentially a short circuit.

 

[stanleystan]

some books I have read to do tests on circuits said they use an ammeter as a current load or a shunt load

It says in the book that you can set the ammeter to be a 1amp load

 

[BradtheRad]

My multimeter contains resistors which are inserted inline on the mA ranges.

On the 300 mA range, it inserts a 1 ohm resistor. It is in parallel with the meter.

I have never thought in terms of using these internal resistors for any purpose except as connected with the meter. I suppose if I wanted, I could hook the meter up to use the 1 ohm resistor for some external purpose.

There is a certain voltage which will pin the meter. I calculate it as .3 V because I would read 300 mA through 1 ohm (and 300 mA is the range which applies the 1 ohm resistor).

 

[barry]

some books I have read to do tests on circuits said they use an ammeter as a current load or a shunt load

It says in the book that you can set the ammeter to be a 1amp load

A 1 amp load at any voltage? Do you mean you can use your ammeter as a current sink? You'd better go back and read that book again...

 

[Audioguru]

Didn't Walterswalt, Dannydan or Billybill already ask these silly questions before?