A proton is projected with a velocity of 7.0 times 10^3 m/s into a magnetic fiel

Question

A proton is projected with a velocity of 7.0 times 10^3 m/s into a magnetic field of 0.60 T perpendicular to the motion of the proton. What is the force that acts on the proton? A) 0 N B) 13 times 10-16 N C) 3.4 times 10-16 N D) 6.7 times 10-16 N E) 4.2 times 10.16 N A wire carrying a 2-A current is placed at an angle of 60 degree with the respect to a magnetic field of strength 0.2 T. If the length of the wire is 0.6 m what is the magnitude of the magnitude force acting on the wire? A) 0.4 N B) 0.8 N C) 1.0 N 0) 0.6 N E) 0.2 N A solenoid 20. cm long is wound with 5000 turns of wire What magnetic field is produced at the center of the solenoid when a current of 10.A flows? A) 1.6 T B) 1.4 T C) 0.67 T 0) 0.31 T E) 0.84 T

Explanation / Answer

3)

here by using the formula

F = B * q * v

F = 0.6 * 1.602 * 10^-19 * 7 * 10^3

F = 6.7 * 10^-16 N

so the correct option is D) 6.7 * 10^-16 N

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