Explain the right hand rule in phy lesse give the point to point ex
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Answer:
hey i can answer this. but what do you want right hand thumb rule or fleming right hand rule plz mentione it
Explanation:
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Answer:
Mark as brainlist
Explanation:
The right hand rule is a way to predict the direction of a force in a magnetic field. To predict the behavior of positive charges, use your right hand. ... If your thumb points in the direction of the velocity and your fingers point in the direction of the magnetic field, your palm points in the direction of the force.
So let's talk about the Right Hand Rule. This is one of the most major things that comes up when you're studying magnetic fields for the first time and really it first comes up when you do cross products maybe in pre-calculus but people kind of forget or maybe haven't taken pre-calc so let's talk about it because it's not difficult but its easy to kind of mess up if you're not used to how it works and I'll show you 3 different Right Hand Rules actually kind of 4 but really 3 all the same and then one is a little different.
Let's just go through it and just see how it works. Alright so we start off with the Lorentz force law f equals qv cross b. Alright cross products work like this, you take your right hand, you put your thumb in the direction of the first vector your fingers in the direction of the second vector and your palm points in the direction of the cross product so when we're doing this with the Lorentz force law, first vector velocity so that means my thumb always has to play the role of the velocity. Second vector magnetic field, so that means my fingers have to play the role of the magnetic field the cross product gives the force so that means my palm is always in the direction of the force.
Alright, so let's do a little bit of work with this but first of all I have to show you open major convention that you may or may not be aware of. Magnetic fields have to be in three dimensions but look I'm drawing everything on the board, that board only represents a two dimensional space so I can indicate over I can indicate up but how do I indicate out or in. The way that we do that is we have this convention we say look whenever you see a cross that means that you're talking about a vector that is pointing into the board okay? Basically you can think about it like you know when I put a vector like that it's a arrow what would it look like if the arrow was pointing into the board? Well you'd see the feathers and so that's what the cross is, the feathers. What if it's pointing out of the board? Well now I'm going to see the arrow tip so I just make a little dot now sometimes I'll circle that to indicate that its not just an errant dot that I just put on there but sometimes I'm not really that worried about it for example if I've got lot's of them, it's obvious that this represents the magnetic field so in this case I've got a positive charge moving downward in a magnetic field that's directed into the board. Alright here we go thumb is the velocity, fingers are the magnetic field and notice that my palm is now pointing to the right so that's the direction of the force on this charge to the right.