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GCSE     Measure     >Current<     Frequency Meter     Logic Probe     Multimeter     Oscilloscope     Power     Voltmeter    

Measure Current


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  GCSE    Measurements  0 of 5    Question 1492    Measure Frequency Meter 
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Connect an ammeter in series. The voltage across an ideal ammeter is zero. 

Current is Measured in Amps

Ammeter Facts

An Ideal Ammeter

Measuring Current

CORRECT

Flash Animation: How the experts do it!

WRONG

Flash Animation: How the twonks do it!

Twonk is also the noise made by the pointer in an analogue ammeter smashing itself against the end stop shortly before the meter burns out.

The ammeter must be placed in SERIES with the component who's current needs to be measured.

Break the circuit by removing a wire and replace the wire with the ammeter. In this way, the current flows through the ammeter and can be measured.

Wire the Ammeter in Series

Making Safe use of Multimeters

Multimeter used as an Ammeter

Many beginners play multimeter roulette.

If they are lucky, they only blow the fuse inside the meter. It is also possible to destroy the meter. To play this game,

You are most likely to destroy the meter when trying to measure current. Remember that the current you are measuring must flow through the meter.

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