Least count of a physical balance
The smallest weight in a physical balance box is usually the 10 mg rider, so the least count is 0.01 g.
Least count
0.01g
0.01 g
Least count = the smallest mass in the weight box (the rider).
Least count = the smallest mass in the weight box (the rider)
A physical balance is used for the mass of small objects. The working for the textbook numbers is 0.01 g.
Other instruments
Physical balance: quick answers
What is the least count of a physical balance?
The smallest weight in a physical balance box is usually the 10 mg rider, so the least count is 0.01 g. Least count = the smallest mass in the weight box (the rider).
How do I find the least count of my physical balance?
Least count = the smallest mass in the weight box (the rider). For the instrument in front of you, read the scale and use your own numbers in the tool above.
Why does the least count matter?
The least count is the smallest reading you can make, so it sets the smallest error in a single measurement. Physical balance measures the mass of small objects.