# How do you calculate least count in ammeter?

## How do you calculate least count in ammeter?

The smallest value that can be measured is called Least Count ….Find Least count of Ammeter and Voltmeter given below.

Ammeter Voltmeter
For Ammeter, We see that 10 Divisions is equal to 0.2 Amperes So, Least Count = 0.2/10 = 0.02 A For Voltmeter, We see that 10 Division is equal to 1 Volt So, Least Count = 1/10 = 0.1 V

### What will be the least count of the ammeter if it can read a maximum current of 500ma and has 5 divisions between 0 and 10ma?

The answer is (c) 270 mA. Least count of the ammeter = (100 − 0)mA/20 = 5 mA.

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#### What is least count in an ammeter There are 20 divisions?

In the ammeter , there are 20 markings between 0 mark and 0.5 mark. So, least count (LC) of the ammeter is 0.

What is meant by least count in an ammeter There are 20 division between the 0 mark and 0.5 Mark Find least count of ammeter?

The least count is related to the precision of an instrument. Range is basically the difference between maximum value to the minimum value. For voltmeter, there are 20 divisions for a voltmeter between 0−0.5V marks. Means 0.5 volt is equal to 20 divisions.

When using an ammeter How do you measure current?

To measure current, you must connect the two leads of the ammeter in the circuit so that the current flows through the ammeter. In other words, the ammeter must become a part of the circuit itself. The only way to measure the current flowing through a simple circuit is to insert your ammeter into the circuit.

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## How does an ammeter measure DC current?

Keeping the range to highest will prevent the ammeter to blow up its internal fuse. Then set the current type i.e. DC or AC. Now connect the terminals of ammeter in series of the resistance or load. By this arrangement, ammeter experiences the same amount of current that flows in the circuit.

### How many divisions are there in an ammeter?

An ammeter has a range of 0-3 ampere and there are 30 divisions on its scales. What is its least count? So, Least Count of Ammeter is 0.1 A

#### What is the least count of the ammeter?

So the least count of the ammeter is 1/5 A or 0.2 A. Same method for finding the least count for a Voltmeter or rather for any instruments. All voltmeters and ammeters have scale starting from zero to 100 or you may consider any value.

How many amperes can an ideal ammeter measure?

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Am ammeter thus can have least count from anywhere from 1 or 2 microamps to tens of amperes, depending on the full scale deflection and difference between two marks on the scale. What is an ideal ammeter? An ammeter which has zero internal resistance so that there will no voltage drop when one measures current.

How do you find the least count of a meter?

Least count – Least count is a smallest value which you can measures. We can find it by dividing the meters range from its divisions. For example – If a ammeter range is 0 to 200mA and ammeter has 20 divisons. Then its least count will = 200mA/20 =10mA.