Write a difference between beam balance and physical balance?
Beam balance | Physical balance |
1. A beam balance consists of a horizontal beam which is supported at its center. | 1. Physical balance is utilized for the precision mass measurement . |
2. Two pans of equal masses are suspended from both ends of the beam. | 2. A physical balance can measure accurately upto a milligram. |
3. The object is kept on one side and the standard masses on the other. | 3. It is provided with a box of standard masses ranging from 1 mg to 100 g. |
4. When both the pans are equally loaded the beam is horizontal and the pointer points vertically up at the center. |
4. It works on the same principle as that of the beam balance. |