What does force/carge mean? I can't imagine it

  • Thread starter Thread starter gforce01
  • Start date Start date
  • Tags Tags
    Mean
AI Thread Summary
Force per charge, or electric field (E), is defined as the force experienced by a charged body, expressed mathematically as F = qE, indicating that force is directly proportional to both charge and the electric field. The discussion highlights that the Lorentz force equation incorporates both electric and magnetic influences, represented as F = qE + q(v x B), where v is velocity and B is the magnetic field. This relationship illustrates how electric fields exert forces on charged particles, with the force being parallel to the electric field direction. Understanding this concept is crucial for grasping the dynamics of charged particles in electromagnetic fields. The explanation clarifies the foundational principles of electromagnetism.
gforce01
Messages
6
Reaction score
0
some one please tell me what force/charge means, i can't imagine it.
 
Physics news on Phys.org
Hi gforce01! :smile:

Electric field, E, is force/charge …

that just means that the force on a body with charge q is qE

so force is proportional to charge, and also proportional and parallel to the electric field :wink:
 
The Lorentz force on a charge q is
F = qE + q(v x B)
where v x B (force/charge) represents the vector cross product of v (velocity) and B (magnetic field).
 
The rope is tied into the person (the load of 200 pounds) and the rope goes up from the person to a fixed pulley and back down to his hands. He hauls the rope to suspend himself in the air. What is the mechanical advantage of the system? The person will indeed only have to lift half of his body weight (roughly 100 pounds) because he now lessened the load by that same amount. This APPEARS to be a 2:1 because he can hold himself with half the force, but my question is: is that mechanical...
Hello everyone, Consider the problem in which a car is told to travel at 30 km/h for L kilometers and then at 60 km/h for another L kilometers. Next, you are asked to determine the average speed. My question is: although we know that the average speed in this case is the harmonic mean of the two speeds, is it also possible to state that the average speed over this 2L-kilometer stretch can be obtained as a weighted average of the two speeds? Best regards, DaTario
Some physics textbook writer told me that Newton's first law applies only on bodies that feel no interactions at all. He said that if a body is on rest or moves in constant velocity, there is no external force acting on it. But I have heard another form of the law that says the net force acting on a body must be zero. This means there is interactions involved after all. So which one is correct?
Back
Top