Moving Charges ...

Which line shows the path of alpha radiation in a magnetic field?

Two wires are aligned side by side and both hooked into different circuits in which the current is allowed to flow into each circuit. Identify which of the following statements is correct?

A proton enters a region of constant magnetic field, $$B$$, of magnitude $$1.0$$ tesla with initial speed of $$1.5 \times {10}^{6} {m}/{s}$$ . If the protons initial velocity vector makes an angle of $${30}^{o}$$ with the direction of $$B$$. Calculate the speed of the protons $$4$$ seconds after entering the magnetic field.

Which line shows the path of beta radiation in a magnetic field?

The diagram above shows atomic particles moving through a magnetic field.
A beam of electrons is deflected in the magnetic field and strikes at the point $$P$$ as shown in the figure.
At which letter would a stream of protons strike the screen?

A positively charged particle of charge $$q$$ is moving in circular path of radius $$r$$ within uniform magnetic field, $$B$$. Find the expression which gives the magnitude of the particle's linear momentum.

A positively charged particle of $$1.0 C$$ is moving upward at a velocity of $$2.0 \times {10}^{3} {m}/{s}$$ in a magnetic field of strength $$4.0 \times {10}^{-4} T$$, directed into the page. Calculate the magnetic force experienced by the charge particle. 

In the above shown figure, what is the direction of the magnetic force $$F_B$$ ?

Two electrons are entering perpendicularly to the magnetic field. The velocity of one of the electrons is three times greater than the velocity of the other electron. Calculate the ratio of the circular radii of the path followed by the two electrons ?

A point charge particle of charge q and mass m is moving in circular path of radius r with constant speed v in a uniform magnetic field due to magnetic force. If the speed is doubled to 2 v then what happens to the period of revolution, T?