Bar magnet magnetic compass n 3 click on show field

Bar magnet
Magnetic compass
N

3. Click on “Show Field Meter” toggle on right menu.
Move the meter around and observe the magnetic field strengths. Note: the
meter reads in G (Gauss) rather then T (Tesla); 1 T = 10 000 G
Complete the following statements (4 marks) and do NOT put the meter on
top of the magnet.
a) B (total B) gets stronger as you get closer to the magnet and weaker as
you get further from the magnet.
b) B
x
(x-component of magnetic field) is strongest along the x-direction
c) B
y
(y-component of magnetic field) is strongest along the y-direction
d)  (angle of magnetic field), the angle of magnetic field, is measured from the horizontal
of the bar magnet .
.
.

Data Collection: Pickup Coil (9 marks)
Select “Pickup Coil” in top left corner.
1. Move the bar magnet left and right THROUGH the coil of wire. Describe the orientation
of the magnetic field compared to the coil when the most current is generated. (1 mark)
2. Increase the number of Loops to 3.
How does the number of loops affect the current flow: the greater
the number of loops, the greater the current. (1 mark)
How does Loop Area affect the current flow? Describe the effect and provide a plausible
explanation.
4. Why is little to no current generated when the bar magnet is moved up and down?

Note: the animations all demonstrate Real Current. Conventional current is the opposite
direction
Conventional current is the opposite of actual electron flow; it is +ve to –ve (use “Right-
Hand-Rules”)
Real current = actual electron current from –ve to +ve (use “Left-hand-rules”)