1) An alpha particle moves in a plane perpendicular to the Earth\'s North pole.

Question

1) An alpha particle moves in a plane perpendicular to the Earth's North pole. What is causing the particle to rotate with a velocity of 1.94E-6 m/s and a radius of 1nm? What direction is it travelling?

2)300 loops of wire rotating in a uniform magnetic field produces a force of 35.7N. If the total length of the wire is 150m, the current is 12A and the magnetic field strength is 678G, what is happening to the loop of the wire?

3) 75kW of power was sent through the power lines to a small town 30 miles away. The engineer, who did not understand physics very well, decided that high voltage was just too dangerous and ran 240V into the town. If the total resistance of the wire was just 0.72 ohms; give mathematical evidence why the engineer was fired.

Explanation / Answer

1. since it is a positivey chjarged particle, it must be travelling perpendicualry into the board

--------------------------------------------------------

2. Torque will be action on ther loop of the wire

----------------------------------------------------------

power P = v^2/R

volatge V = sqrt(PR)

V = sqrt( 75000* 0.72)

V = 232.4 volts

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.