Lorentz Force and Electric-Magnetic Field Interaction Quiz

The Lorentz force equation is given by $F = q [E(r) + v \times B(r)]$. It consists of the electric force $Felectric$ and the magnetic force $Fmagnetic$.

The main features of the Lorentz force equation are: (i) It depends on q, v, and B. Force on a negative charge is opposite to that on a positive charge. (ii) The magnetic force $q[v \times B]$ includes a vector product of velocity and magnetic field. The force due to magnetic field becomes zero if velocity and magnetic field are parallel or anti-parallel. (iii) The magnetic force is zero if the charge is not moving (as then $|v|= 0$).

The force due to the magnetic field becomes zero if the velocity and magnetic field are parallel or anti-parallel.

<p>The magnetic force is zero if the charge is not moving (as then $|v|= 0$).</p> Signup and view all the answers

<p>The force on a negative charge is opposite to that on a positive charge.</p> Signup and view all the answers

<p>The Lorentz force, F, on a charged particle with charge q and velocity v in the presence of both electric field E and magnetic field B can be written as $F = q [ E + v imes B] = F_{electric} + F_{magnetic}$. It depends on the charge q, velocity v, and magnetic field B.</p> Signup and view all the answers

<p>The main features of the Lorentz force equation are: (i) It depends on q, v, and B. Force on a negative charge is opposite to that on a positive charge. (ii) The magnetic force $q [v imes B]$ includes a vector product of velocity and magnetic field. The force due to magnetic field becomes zero if velocity and magnetic field are parallel or anti-parallel. (iii) The magnetic force is zero if the charge is not moving (as then $|v|= 0$).</p> Signup and view all the answers

<p>The magnetic force becomes zero when the velocity and magnetic field are parallel or anti-parallel.</p> Signup and view all the answers

<p>The magnetic force is zero if the charge is not moving, as then $|v|= 0$.</p> Signup and view all the answers

<p>The force on a negative charge is opposite to that on a positive charge.</p> Signup and view all the answers