The Magnetic Field 4.4

Question 1

3 properties of magnetic fields?

Answer 1

1. Magnetic field lines never cross or meet
2. Magnetic field lines are closed loops.
3. field lines become closer- the stronger the magnetic field.

Question 2

Fleming left hand?

Answer 2

first finger = direction of magnetic field
Second finger = current
thumb = force.

Question 3

Who is the most brilliant person to have ever existed?

Answer 3

me.

Question 4

formula for magnetic density flux.

Answer 4

F = Bil sin(0) (T)

B - Magnetic flux density
F = force
I = current
L = length
Sin(0) angle

Question 5

3 particles accelerators.

Answer 5

1. Linear accelerator
2. Cyclotron
3. Synchrotron

Question 6

define equipotential lines?

Answer 6

lines that are perpendicular to field lines.

Question 7

Strength of a solenoid depends on?

Answer 7

1. Current
2. no. of turns the wire has.
3. Core of a solidnoid

Question 8

Define the generator effect?

Answer 8

Wire which moves in a electric field generates a current.

Question 9

Using motor effect which hand?

Answer 9

FLHR

Question 10

Using Generator effect?

Answer 10

FRHR