<p>My review book keeps talking about the "right hand rule" but I have no idea what that is.. :D</p>
<p>Help please?</p>
<p>well, the right hand rule is used to determine the direction of the magnetic force when given v and B, the speed of the particle and strength of magnetic field, respectfully. make an L with your entire hand and point your fingers in the same direction as v. if B is directed out of the page, the flip your hand so your palm is facing upwards, otherwise, if B is directed into the page, flip your hand so your palm is facing downwards (same direction as B). if q, the charge of the particle, is positive, the force it feels is in the same direction as your thumb at this point, assuming you put it at 90 degrees to the rest of your hand. if q is negative, it's in the opposite direction</p>
<p><em>edit</em> are you using the princeton review book too? mine didn't tell me what the right hand rule was about, had to figure it out on me own -_-</p>
<p>oohhhh... =D
thank you! </p>
<p>by the way: yes i am using the princeton review book. two chapters left to go!</p>
<p>I learned it at school...</p>
<p>freakystyley is right, although it is simpler if I explain it like this:</p>
<p>Use your first three fingers in your right hand and call them: Motion (direction of the motion of the current; thumb), Force (where the force is acting towards, indicator) and Current (direction of current + --> -; middle finger)</p>
<p>This is used for motors, so just get your right hand and determine the 3 things (actually 2 so you can easily find out the third)</p>