Question

in an ammeter there are 25 divisions between 0and 1A,the least count of the ammeter is

Answer 1

Answer:

2A

Range of ammeter   I=2 A

Number of divisions   n=20

Least count of ammeter   L.C=  

n

I  =  20

2

​=0.1 A per division

Thank you

Answer 2

Answer:

0.1 A

Explanation:

Given:

Ammeter's range = I = 2A

No. of division n = 20

To find: Ammeter's least count = LC

Solution:

In order to gauge the whole flow of electrons, an ammeter is connected in series with the circuit (current). The causes of power loss in the device are the measured current and the ammeter's internal resistance. Low resistance is provided by the ammeter circuit, resulting in a minimal voltage loss in the system.

Ammeters are able to measure enormous currents. We should use an ammeter in that range when there is a small amount of current flowing through the circuit, such as when it is in the milliampere or microampere range. Microammeter is the name of the ammeter used to measure micro ampere current, while milli ammeter is the name of the ammeter used to measure milli ampere current.

the least ammeter count$=\frac {Range}{Total Division}$

$=\frac{3}{30}\\ =0.1A$

Hence the least count of ammeter is 0.1A.

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