The relations and differences between the formulas e = BIV and F = bil, and their application scenarios

One is ampere force and the other is motional electromotive force

RELATED INFORMATIONS

1. In the formula of Ampere force F = bil, why is it that B and I are not necessarily vertical, while f must be perpendicular to B and I
2. In the same plane, there are three parallel long straight wires with equal distance. 1, 2 and 3 have the same current of 1, 1 and 1 ampere respectively. Their forces are F1, F2 and F3 respectively
3. What do u and F in physics mean?
4. What's the formula of tensile force and elongation of physics grade one?
5. Which formula is f tension. N.H So what does n mean???
6. The unit of V in the power formula P = FV
7. Is v the speed of the object or the speed of the rope in the pulley?
8. What is the formula P = FV.. V for calculating power? F is tension?
9. As for the power formula & nbsp; P = wt & nbsp; and & nbsp; P = FV, the following statements are correct () A. From P = wt & nbsp; & nbsp;, as long as you know & nbsp; W & nbsp; and & nbsp; T & nbsp;, you can calculate the power at any time. B. from & nbsp; P = FV & nbsp;, you can only calculate the instantaneous power at a certain time. C. from & nbsp; P = FV & nbsp;, you can know that the power of a car is directly proportional to its speed. D. from & nbsp; P = FV & nbsp;, you can know that when the engine power of a car is constant, the traction force is inversely proportional to its speed
10. Is f in P = FV a resultant force? So why does P = f pull v when moving at a constant speed?
11. What is the relationship between B, I and F in F = bil formula? Is it vertical
12. What is the buoyancy formula
13. Buoyancy formula In f-float = g-row = pgv-row, if an object floats or floats, then buoyancy is the gravity of the object. In this case, does g-row refer to the gravity of the object or the gravity of some objects immersed in water? Are the two equal?
14. On the buoyancy formula of water I've always been confused with F = g and Archimedes principle Take this question for example The submarine begins to dive from the sea until it is completely submerged. In this process, how does the buoyancy of the sea change If f is used in this problem, the buoyancy force should be constant In Archimedes' words, row V becomes larger and row f becomes larger How to judge I'm crazy about buoyancy
15. How to calculate the buoyancy of water?
16. What is the cause of buoyancy_____________________ Expressed as__________ .
17. Derivation of buoyancy formula from the cause of buoyancy If the title is more detailed, it's better to have a picture
18. What is g in the formula for calculating buoyancy
19. What's the difference between the buoyancy formula F = P liquid GV row and F = g
20. Why does the buoyancy of a ship from the sea to the river remain unchanged, while that of a submarine from the sea to the river decreases? Why does the buoyancy of a ship remain unchanged?