Please answer the following, I am struggling so much in this chapters: 1. A circ
ID: 2301346 • Letter: P
Question
Please answer the following, I am struggling so much in this chapters:
1. A circular coil, 6.00cm in a diameter is placed in a uniform magentic field 0.300T. Find the flux through the coil when the coil makes an angle of 53degrees with B. What is the flux if the angle is increased to 90degrees?
2. The magnetic flux through a coil of 10 turns, changes from 5.00x10^-4 Wb to 5.00x10^-3 Wb in 1.00x10^-2s. FInd the induced emf in the coil.
3. A circular coil 6.00cm in diameter is placed in a uniform magnetic field of .500T. IF B drops to 0 in .002s find the maxium induced emf in the coil.
4. A train is traveling at 40.0km/hr in a location where the vertical component of the earth's magenetic field is 3.00x10^-5T. If the axle of the wheels is 1.50m apart, what is the induced potential difference across the axle?
5. Lenz's Law: What is the direction of the induced current in the solenoid if a north magnetic pole is moved toward the solenoid in the diagram?
Explanation / Answer
1) flux = B*A*costheta = 0.3*3.14*0.03^2*cos53 = 510.21878e?6 Wb
2) emf = -10*(5*10^-4 - 5*10^-3)/10^-2 = 45*10^?2 volts
3) emf = (0.5**3.14*0.03^2)/0.002 = 706.5*10^?3 v
4) emf = B*V*L = 3*10^-5*40*(5/18)*1.5 = 500*10^?6 v
5) left to right