Lab 8 Flashcards
(7 cards)
1
Q
What is the field direction?
A
the field direction is taken to be outward from the North pole and in to the South pole of the magnet.
2
Q
What is the effect of opposite poles?
A
Opposite poles attract
3
Q
what is the effect of same poles?
A
Same poles repel
4
Q
How can we create straight magnetic fields?
A
We can also create straight magnetic field using loops or coils of wires
5
Q
What is the formula of a magnetic field in a solenoid?
A
B = μ0 nI/L
6
Q
What is the formula of a magnetic field in a n turn coil?
A
B = μ0 nI/2r
7
Q
What is the difference between a coil and a solenoid?
A
For a coil : r>L
For a solenoid: L>r
