REALLY NEED HELP WITH QUESTIONS 5,6,7,8 You are given 50 m of 2.5 mm diameter co
ID: 1540245 • Letter: R
Question
REALLY NEED HELP WITH QUESTIONS 5,6,7,8
You are given 50 m of 2.5 mm diameter copper wire, a power supply 0 to 50 V. Current in the wire has to be less than or equal to 15 A to avoid overheating.
1) Calculate the resistance of the wire.
2) For what voltage from the power supply is the current 15 A?
3) What is the power dissipated in the wire for question two?
Assuming that the 50 m wire from before is used to wind a solenoid uniformly with a length of 20 cm long solenoid & a diameter of 6 cm, find the magnetic field (magnitude and direction) assuming I equals 15 A and the geometry shown below. [Solenoid current side view]
5) What is the largest rightward velocity of an electron launched from the center of the solenoid so that it remains inside the solenoid?
6 Assume the electron is launched with one half the previously calculated maximum velocity from the same point. Answer the following questions:
a) What is the value of the radius of the electron’s orbit?
b) What is the direction of motion of the electron around the circle (clockwise or counterclockwise)?
c) What is the period of the electron’s orbit?
d) sketch the electron’s orbit.
7.Same as question five but for a proton.
8. assume a proton is launched with one half the previously calculated maximum velocity. Answer the following questions.
a) What is the value of the radius of the proton’s orbit?
b) What is the direction of motion of the proton around the circle (clockwise or counterclockwise)?
c) What is the period of the proton’s orbit?
d)sketch the proton’s orbit.
6060 6cm @@666 zown bExplanation / Answer
B = uNI/l = 0.025T
5) qvB = mv2/r
v = qBr/m = 1.32*108m/s
6) 1. r = 1.5cm
2. Clockwise
3. T = 2(pi)r / v = 1.427*10-5s
7) v = 7.186*104m/s
8) a) r = 1.5cm
b) counterclockwise
c) T = 1.31*10-6s
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