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Wiki User
∙ 14y agoNo,,it is a instrament to check amperage,,,most volt meters have a amp gauge.
Wiki User
∙ 11y agoAn ammeter only measures electrical current. However, if it is used in conjunction with a voltmeter, then the measurements of current and voltage can be used to calculate resistance as: R=V/I
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Why wouldn't the shunt resistor in the ammeter protect the ammeter when the ammeter is connected in parallel?
Connecting an ammeter in parallel subjects that ammeter to the full supply voltage. The shunt resistor is not designed to sustain that value of voltage and will burn out. Also, the clue is in the word 'shunt' (which means 'in parallel') which means that the coil will also burn out!
To increase the range of a dc ammeter you would use a?
To increase the range of an ammeter, you connect a very low impedance resistor in parallel with the ammeter.
How does an ammeter work?
An ammeter is a low voltage voltmeter in parallel with a small resistance resistor. Current flow through the resistor creates a voltage drop across it which is then measured by the voltmeter.
How is the reading on an ammeter be affected when one of the parallel resistors is removed?
decrease to half of its original value
High resistance in parallel connected with galvanometer to form voltmeter?
That won't work. To convert an ammeter (a galvanometer is a very sensitive type of ammeter) you connect a high value resistor in series with it.
Why wouldn't the shunt resistor in the ammeter protect the ammeter when the ammeter is connected in parallel?
Connecting an ammeter in parallel subjects that ammeter to the full supply voltage. The shunt resistor is not designed to sustain that value of voltage and will burn out. Also, the clue is in the word 'shunt' (which means 'in parallel') which means that the coil will also burn out!
To increase the range of a dc ammeter you would use a?
To increase the range of an ammeter, you connect a very low impedance resistor in parallel with the ammeter.
How do you find amperes when using a resistor?
if you want to find the current (in amperes) through the resistor then connect a ammeter in series with the resistor.
How you convert galvanometer into ammeter in detail?
By attaching a resistance in parallel connection with the galvanometer. Or when a low resistor connected in parallel with galvanometer ,the galvanometer is converted in ammeter. and the resistor is called shunt resistance.
How does an ammeter work?
An ammeter is a low voltage voltmeter in parallel with a small resistance resistor. Current flow through the resistor creates a voltage drop across it which is then measured by the voltmeter.
How is the reading on an ammeter be affected when one of the parallel resistors is removed?
decrease to half of its original value
What effect if any does connecting an ammeter in series with a resistor in a circuit have on the current though the resistor?
That depends on the quality (price) of the meter. Ideally it should have no effect.
What happens to the ammeter reading if resistor is removed?
Opening any circuit will stop the current from flowing.
What happens to the reading on an ammeter if the value of a variable resistor is increased?
it explodes and burns everyone in the room.
How resistor are tested given a voltage source and ammeter?
I can think of the following characterisatics of a physical resistor that would beimportant to know in various circuit design situations:ResistancePower dissipation capabilityEquivalent parallel capacitanceEquivalent series inductanceI think it's accurate to say that Resistance is the only one that can be measuredwith a voltage source and ammeter.It would be necessary to know the voltage of the voltage source. Then proceedas follows:Connect the voltage source, resistor, and ammeter in series.Energize the voltage source.Read the ammeter.The resistor's resistance is (Voltage)/(Current, as indicated by the ammeter).
High resistance in parallel connected with galvanometer to form voltmeter?
That won't work. To convert an ammeter (a galvanometer is a very sensitive type of ammeter) you connect a high value resistor in series with it.
Why the windings of an ammeter should be of thick wire?
because lots of current is likely to be flowing through them.however a shunt ammeter is easier to build than the direct ammeter as described above. in a shunt ammeter you use an ordinary meter wound with fine wire and put a small value shunt resistor across it to take almost all the current.
