text: http://physics.qc.cuny.edu/files/526 QUESTION 1 In procedure 3, the slope
ID: 2033208 • Letter: T
Question
text: http://physics.qc.cuny.edu/files/526
QUESTION 1
In procedure 3, the slope of the graph should represent
BL
IB
mgL
IL
mgI
QUESTION 2
When placing the magnets in the holder, how should the magnets should be oriented?
The north end of each magnet should be in line with the south end of the adjacent magnets. This yields an overall stronger net magnetic field that is approximately proportional to the number of magnets.
One side of the holder should have the north ends and the other should have the south end. This yields an overall stronger net magnetic field that is approximately proportional to the number of magnets.
One side of the holder should have the north ends and the other should have the south end. This yields an overall stronger net magnetic field that is approximately proportional to the number of magnets squared.
Half of the magnets should have north ends together and the other half should have the south ends together. This yields an overall stronger net magnetic field that is approximately proportional to the number of magnets.
The north end of each magnet should be in line with the south end of the adjacent magnets. This yields an overall stronger net magnetic field that is approximately proportional to the number of magnets squared.
Half of the magnets should have north ends together and the other half should have the south ends together. This yields an overall stronger net magnetic field that is approximately proportional to the number of magnets squared.
QUESTION 3
In procedure 1, suppose you collect the following data:
What will be the value of BL from the graph in units of T·m? (You will need to plot these data in Excel)
Express your answer to three significant figures.
QUESTION 4
When you put the magnet holder on the scale with all six magnets in place, the scale will read approximately
50 g
100 g
150 g
200 g
250 g
300 g
350 g
400 g
QUESTION 5
Which best describes procedure 2?
Use the longest wire and varry the current from 0.8 A to 2.0 A, while leaving all six magnets in the holder.
Varry the legnths of wire while keeping the current at 1.5 A and leaving all six magnets in the holder.
Use the longest wire, fix the current at 1.5 A, while varrying the number of magnets in the holder.
Varry the legnths of wire while keeping the current at 20 A and leaving all six magnets in the holder.
Use the longest wire, fix the current at 20 A, while varrying the number of magnets in the holder.
Use the shortest wire and vary the current from 0.8 A to 2.0 A, while leaving all six magnets in the holder.
BL
IB
mgL
IL
mgI
Explanation / Answer
1) As F = ILB, a graph between F and L should have a slope representing IB. It means the slope will be equal to IB
2) Cannot be answered without seeing the actual setup
3) Keep F on x axis and I on y axis to get slope as BL.
4) The maximum can be 400 g
c) we have taken the length as 8 cm which is the longest and we have fixed the current at 1.5 amps and removed magnet . so option 3 is correct.
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