Magnets Flashcards
(6 cards)
1
Q
Factors affecting strength of electromagnet
A
1) number of turns
2) size of current
3) reducing length of wire and maintaining number of turns in the coil
4)adding an iron core
2
Q
How to spot the polarity of a solenoid
A
Check the ends
Current travelling CLOCKWISE: South Pole
Current travelling ANTICLOCKWISE: North Pole
3
Q
Why will a charged particle be deflected in a magnetic field
A
The magnetic field can exert a force on the particle that passes through, causing it to deflect (LHR)
4
Q
Charged particle travelling perpendicular:
A
Maximum force
5
Q
Charged particle travelling parallel:
A
No force
6
Q
Charged particle travelling at an angle:
A
Small force
