Practice Question
1.Fill in the table below
| Force,F (N) | Magnetic flux density,B (T) | Current,I (A) | Length,l (m) |
|---|---|---|---|
| 0.2 | 5.0 | 0.5 | |
| 2.0 | 8.0 | 0.6 | |
| 4.0 | 0.5 | 10.0 | |
| 6.0 | 0.4 | 0.8 |
| Force,F (N) | Magnetic flux density,B (T) | Current,l(A) | length,l (m) |
|---|---|---|---|
| 0.5 | 0.2 | 5.0 | 0.5 |
| 2.0 | 0.4 | 8.0 | 0.6 |
| 4.0 | 0.5 | 10.0 | 0.8 |
| 6.0 | 0.4 | 18.8 | 0.8 |
2.A wire of length 1.5m wire has a current of 5A flowing along its enitre length. This wire is placed into a magnetic field of strength 0.6 Tesla. Calculate the force that the wire experience
Force = magnetic flux density x current x length
Force = 0.6 x 5 x 1.5 = 4.5N
3. A wire of length 75cm experiences a force of 20N when placed in a field of 500 milliTesla. Calculate the current flowing along the wire
500 milli Tesla = 0.5 Tesla.
75cm = 0.75m
Current = Force/(magnetic flux density x length)
Current = 20/(0.5 x 0.75)
Current = 53.3 Amps
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