(a) Recall that vector change is the difference between the final vector (in thi
ID: 1282153 • Letter: #
Question
(a) Recall that vector change is the difference between the final vector (in this case representing the magnetic field averaged over the area of the coil at its new location) and the initial vector (in this case representing the magnetic field averaged over the area of the coil at its original location). What is the direction of change of the magnetic field lying in the plane of the coil, if the north pole of the magnet is moved toward the left through the coil as shown in Figure 2? Is it to the left (in the negative x-direction) or to the right (in the positive x-direction) or no direction?
(b) What happens to the magnitude of the peak flux changes in the area subtended by the coil, if the magnet is moved more rapidly through the coil? Does it increases, decreases or stays the same?
(c) According to Faraday
(a) Recall that vector change is the difference between the final vector (in this case representing the magnetic field averaged over the area of the coil at its new location) and the initial vector (in this case representing the magnetic field averaged over the area of the coil at its original location). What is the direction of change of the magnetic field lying in the plane of the coil, if the north pole of the magnet is moved toward the left through the coil as shown in Figure 2? Is it to the left (in the negative x-direction) or to the right (in the positive x-direction) or no direction? (b) What happens to the magnitude of the peak flux changes in the area subtended by the coil, if the magnet is moved more rapidly through the coil? Does it increases, decreases or stays the same? (c) According to Faraday?s Law what happens to the magnitude of induced Emf if the magnet is moved through the coil more rapidly? Does it increases, decreases or stays the same? (d) According to Faraday?s Law when will the measured Emf induced in the coil be positive? When will it be negative? (Refer to Figure 2 and use + and ?? signs as appropriate) 1. When the south pole of the magnet moves half way into the coil to the left 2. The magnet is halfway in the coil and its south pole is pulled out to the right 3. When the north pole of the magnet moves half way into the coil to the left 4. The magnet is halfway in the coil and its north pole is pulled out to the rightExplanation / Answer
[a] Here the north pole moves toward the left through the coil, so a positive current results along the counter clockwise direction,[right in the positive x -direction].
[b] Magnitude of magnetic flux increases, when the magnet is moved more rapidly through the coil.
[c] According to Faraday's Law -Any change in the magnetic enviornment of a coil of wire will cause a voltage induced in it.So here when the magnet rapidly moves through the coil, the magnitude of induced emf increases.
[d] According to Faraday
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