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Ammeters in Series
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Ammeters in Series

lesson introduction

Ammeters in Series

We use ammeters to measure the current (in amps) in a circuit. Ammeters must be connected in series.

What is the unit for current?

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Which component is used to measure the current in a circuit?

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1

There are different types of ammeters. What type is the one in the image? Answer "digital" or "analogue".

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2

This is the other type of ammeter.

It is analogue.

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Which of the two types of ammeter do you think is more accurate?

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If we do use an analogue ammeter, how can we ensure that we are as accurate as possible? Pick all the options you think are correct.

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You can select multiple answers

Do we connect an ammeter in series or parallel?

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What is the circuit symbol for an ammeter?

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To sum up!

1

An ammeter measures the current in a circuit, in amps (A).

We connect ammeters in series so that they measure all of the current.

2

There are two types of ammeters: Digital and analogue.

The smaller the scale on an analogue ammeter, the more accurate the reading, but a digital ammeter is more accurate still because it reduces the risk of human error.