1.A proton enters a magnetic field of flux density 1.5 Wb/m² with a velocity of 2.0 x 107 m/s at an angle of 30° with the field. Compute the force on the proton.

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Chapter1: Units, Trigonometry. And Vectors
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B
INSTRUCTION
Solve the following problems. ANSWER ONLY TWO OUT OF THREE QUESTIONS.
Show your complete solutions. NOT FOLLOWING OF INSTRUCTIONS will be a
deduction of 10 POINTS from the total score.
1.A proton enters a magnetic tield of flux density 1.5 Wb/m² with a vetocity of
2.0 x 107 m/s at an angle of 30° with the field. Compute the force on the
proton.
2.A steady current of 2 A in a coil of 400 turns causes a flux of 104 wb to link
(pass through) the loops of the coil. Compute the average back emf induced
in the coit it the current is stopped in 0.08 seconds.
3. A coil of 50 loops is pulled in 0.020 seconds from between the poles of a
magnet, where its area intercepts a flux of 3.1 x 10-4 Wb, to a place where the
intercepted flux is 0.10 x 10-4 Wb. Determine the average emf induced.
Transcribed Image Text:B INSTRUCTION Solve the following problems. ANSWER ONLY TWO OUT OF THREE QUESTIONS. Show your complete solutions. NOT FOLLOWING OF INSTRUCTIONS will be a deduction of 10 POINTS from the total score. 1.A proton enters a magnetic tield of flux density 1.5 Wb/m² with a vetocity of 2.0 x 107 m/s at an angle of 30° with the field. Compute the force on the proton. 2.A steady current of 2 A in a coil of 400 turns causes a flux of 104 wb to link (pass through) the loops of the coil. Compute the average back emf induced in the coit it the current is stopped in 0.08 seconds. 3. A coil of 50 loops is pulled in 0.020 seconds from between the poles of a magnet, where its area intercepts a flux of 3.1 x 10-4 Wb, to a place where the intercepted flux is 0.10 x 10-4 Wb. Determine the average emf induced.
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