electric fields

Question 1

what is an electric field

Answer 1

an area where there is a force on the charged particles

Question 2

what is the arrangement for a positive charge?

Answer 2

lines closer together = stronger fields

lines pointing away = positive charge is repelled

Question 3

what will repel and what will attract

Answer 3

two same charges will repel while two different charges will attract

Question 4

what is the arrangement for negative charges?

Answer 4

the lines point inwards = positive charge is attracted

P.S. if the field strength gets very large, there will be a spark

Question 5

what are some similarities and differences between electric and magnetic fields

Answer 5

similarities:

• opposites still attract
• same still repel
• produced by two kinds of charges/poles

differences:

• there can be a neutral charge in electric, but not in magnetic
• magnetic fields always form loops, electric fields stand on the positive charge and end on the negative

Question 6

what is a danger of electrical fields and how is it dealt with

Answer 6

in surgical rooms, the surgeons need to be careful not to cause any sparks so they have conducting floors that will keep the patients earthed

Question 7

what is a use of an electrical fields

Answer 7

the paint droplets in a spray gun that are used to spray a car are positively charged while the car panels are negative, so the paint will stick better