A negatively charged particle (with Q = -3 m C) moves away (with v = 60 m/s) fro

Question

A negatively charged particle (with Q = -3 mC) moves away (with v = 60 m/s) from a wire with current.  At the instant shown, the charged particle is 16 cm from the current and the magnetic field there has a strength of 0.14 mT (0.00014 T).  

1)     What is the current in the wire?

            a)  102 A

            b)  112 A

            c)  122 A

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Q

v

            e)  142 A

            

2)     What is the magnetic force on the charged particle?

a) 4.52 x 10-8 N upwards (toward the top of the page)

b) 2.52 x 10-8 N upwards (toward the top of the page)

c) 0 N

d) 2.52 x 10-8 N downwards (toward the bottom of the page)

e) 4.52 x 10-8 N downwards (toward the bottom of the page)

            

I

             A negatively charged particle (with Q = -3 mC) moves away (with v = 60 m/s) from a wire with current. At the instant shown, the charged particle is 16 cm from the current and the magnetic field there has a strength of 0.14 mT (0.00014 T). What is the current in the wire? What is the magnetic force on the charged particle? 4.52 x 10-8 N upwards (toward the top of the page) 2.52 x 10-8 N upwards (toward the top of the page) 0 N 2.52 x 10-8 N downwards (toward the bottom of the page) 4.52 x 10-8 N downwards (toward the bottom of the page)

Explanation / Answer

1.b) 112 A

2.b) 2.52 x 10-8 N upwards (toward the top of the page)

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