Need explantion how the direction works by right hand rule and cross product. An

Question

Need explantion how the direction works by right hand rule and cross product. Answers that is stated are correct, but I need a very through explantion about the process.

Consider two separate cases: an electron moving in a region with an electric field and magnetic field, and a proton Electron Proton (a) What is the direction of the force due to the electric field on the electron, and on the proton? electron F | (b) What is the direction bf the force due tb the magnetic field on the electron, and on the proton?elucha F- ix

Explanation / Answer

Since you are answers are correct the only thing you want to understand is direction

In case of electric field it applies a fordce on the proton in same direction and opposite in case of electrons.

For magnetic field or any vector product you encounter, for us v×B

Just stretch your fingers of right hand in direction of v ( first element of your cross) and orient your palm in direction of B( second element of cross) then the thumb will indicate the required direction.

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