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Physics Problems and Exams

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Magnetism

## Helical Path: Charges in Magnetic Field with Solved Example

Helical path is the path of the motion of a charged particle when enters at an angle of $\theta$ in a uniform magnetic field $B$. In this short tutorial, we explain the factors that cause this type of ...

Magnetism

## Direction of Magnetic Force on a Positive Charge: Right Hand Rule

The direction of the magnetic force on a moving positively charged particle is determined by the right hand rules with different versions stated below.  Version 1 (right hand rule): point the ...

Magnetism

## Difference between electric and magnetic forces

The comparison between electric and magnetic forces in physics for high school students is presented briefly.  Definition and formulas: Electric force is repulsion or attraction between two ...