Electromagnetism

Question 1

what is electromagnetism?

Answer 1

the interaction between electricity and magnetism

Question 2

how is electricity and magnetism connected?

Answer 2

an electrical current can create a magnetic field regardless of whether a wire is straight or curled

Question 3

what direction does a conventional current travel in?

Answer 3

it goes from the positive end to the negative end

Question 4

what direction do electrons flow?

Answer 4

negative terminal to positive terminal

Question 5

what are solenoid electromagnets

Answer 5

A solenoid is a type of electromagnet formed by a helical coil of wire. it creates a dipole shape magnetic field

Question 6

list some uses for solenoids

Answer 6

magnetic crane, engines, generators, earphones, speakers, microphones

Question 7

list some benefits of electromagnets

Answer 7

-it could be turned off an on
-can control magnetic intensity
-switch polarity

Question 8

list three ways to increase the strength of a solenoid

Answer 8

increase voltage
increase loops
change core to a more ferromagnetic material