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It would be equivalent to adding a high value resistor (>10M ohms) in series in the circuit. Voltmeters typically present a high internal impedance so as to not change the current flow in the circuit you are tying to measure.

the circuit wont work the voltmeter only takes a voltage reading power does not actually pass through the meter

sometimes it can be used to measure very low leakage current using the hi impedance of the meter. EXAMPLE leakage offset from an amplifier. it could be into the nanoamps.

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13y ago

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Related Questions

Which circuit the ammeter connected in parallel?

An ammeter is always connected in series and a vlotmeter in parallel


Why should ammeter still be connected in a series despite the fact that the bulbs are already connected in parallel?

Because the ammeter connected in parallel will act as a short circuit.


How should a ammeter and voltmeter be connected in circuit?

Ammeter is coneccted in series with circuit but Voltmeter is connected in parallel.


Is a ammeter connected in series or in parallel with the circuit under test?

An ammeter is connected in series. A voltmeter is connected in parallel. ammeter should always be connected in series instead of parallel becoz it is a low resistance device and we know that resistance is inversly proportional to current so more current will pass through it and if it is connected in parallel than it may get damaged


What happens if an ammeter is connected in parallel and voltmeter connected in series in a circuit?

The voltmeter will register the volts, the ammeter will either explode or blow a fuse since it has a very low resistance and is designed to be used in series to measure the current flowing through 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!


How shunt helps to extend the range of ammeter?

A shunt is connected in parallel with an ammeter. Any current applied to parallel devices will divide betwen them, so the ammeter will pass only a part of the total current.


What happens when an ammeter is connected in parallel with a circuit?

SMOKE!!! Yiii-haaaa! An ammeter is always as low a resistance as possible. That way, the current that you measure in a circuit using the meter will be the same as if the meter were not there. So putting an ammeter in parallel with a circuit means that you just short circuited the circuit you were intending to measure. Poof! There goes your ammeter!An ammeter has a very low internal resistance. So, if it is connected in parallel with a load, it will short-out that load. The resulting high current flowing through the ammeter may severely damage the meter (and possible harm the user), although most are fitted with fuses to protect them.


How is ammeter and voltmeter attached to a circuit?

Ammeters are connected in series with the load under test. This requires the load be disconnected from the source, and the ammeter placed in circuit. Voltmeters are connected in parallel with the load under test. This does not require any circuit changes. Sorry, but WikiAnswers does not support illustrations.


Why do you have specific resistance combination inside a voltmeter and an ammeter Explain?

in voltmeter we have internal Resistance and connected in series , to current don't transfer in voltmeter , and we have internal resistance in ammeter and connected in parallel , to most current transfer through the ammeter.


What happens when a bulb ammeter battery and switch are put connected together?

the bulb will glow and ammeter will show the reading


What will a ammeter indicates if it is connected in parallel?

Connecting an ammeter in parallel with a circuit element is hazardous. Because of its negligible resistance, it is equivalent to applying a short circuit across that element, and the resulting current through the ammeter may severely damage the instrument if it is not fused.