The drawing shows a top view of four interconnected chambers. A negative charge

Question

The drawing shows a top view of four interconnected chambers. A negative charge is fired into chamber 1. By turning on separate magnetic fields in each chamber, the charge can be made to exit from chamber 4, as shown. How should the magnetic field in each chamber be directed: out of the page or into the page?

the answer is b. need help with right hand rule very confused maybe explain where my fingers and palms are? thanks

Chamber 1 Chamber 2 Chamber 3 Chamber 4 (a) out of into out of into (b) into out of out of into (c) out of into into out of (d) into out of into out of

Explanation / Answer

the magnetic field in each chamber be directed is

into the page in chamber 1,

out of the page in chamber 2,

out of the page in chamber 3,

into the page in chamber 4.

Using the left hand rule (for negative charges),the magnetic force causes the charge to turn in a clockwise circle,

that is when the field is pointed into page.

When the field points out, the charge goes in a counterclockwisecircle.

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