LT2

Question 1

Anytime a current flows through a conductor, a magnetic field is created around the conductor ​(T or F)

Answer 1

True

Question 2

The flux lines become closer and the magnetic field becomes stronger the further away you are from the conductor
(T or F)

Answer 2

False

Question 3

How to do the left hand rule with just the conductor

Answer 3

Wrap your left hand around the conductor with your thumb pointed in the direction of the current, your fingers will wrap around in the direction of the flux lines

Question 4

Do parallel conductors carrying current in the same direction repel or attract

Answer 4

attract

Question 5

what is the formula for magnitude

Answer 5

Fm = K x l1 x l2/D^2

Question 6

How to do the coil left hand rule

Answer 6

Wrap your left hand around the coil in the same direction as the current flow…what way does current flow??​

Your thumb will then point to the North Pole of the magnet​

By the reverse method you can find out what way the current direction is​

By using a magnet determine the North pole, point your left thumb in that direction and your finger would point toward current flow​

Question 7

What are four ways to increase the strength of an electromagnet?​

Answer 7

The spacing between coils for an air-core electromagnet​

The number of turns in the coil ​

The type of material from which the core is made ​

The magnitude of the current flowing ​

Question 8

What are some Ferromagnetic Materials​ and some non- Ferromagnetic Materials​?

Answer 8

Ferromagnetic Materials​: Steel, Iron, Nickel, Cobalt

Non-Ferromagnetic Materials​: Glass, copper, aluminum, Stainless steel