Question

A??

Answer 1

this is a memorization based question, but a short circuit happens when there is a great excess of current caused by a sudden decrease in resistance (D)

Answer 2

Which circuit shows a power source connected in series to three resistors?

Answer 3

are you familiar with the definitions of series circuits vs parallel circuits?

Answer 4

Could you just go over the definition and difference

Answer 5

So C?

Answer 6

notice how series are all on the same main wire while parallel circuits have their circuit elements arranged in a parallel set of wires

so yeah C

Answer 7

A

Answer 8

perfect

Answer 9

C

Answer 10

good (had to look this one up myself ;;)

Answer 11

B

Answer 12

not quite, since these resistors are in series you just need to add them up, so 10 + 20 + 30 = 60 ohms

Answer 13

Not sure about this one.

Answer 14

charge per second = current, so we are looking for ammeters which must be in series so A+B (answer choice C)

Answer 15

D

Answer 16

actually for the other one I think it might actually be A + C? :S

Answer 17

Already submitted that, its alright =)

Answer 18

I'm actually not sure on this one myself

Answer 19

@Shadow @sillybilly123

Answer 20

anyway for the lightbult question, any thoughts? they're all in series

Answer 21

D

Answer 22

Because if one goes out they all will?

Answer 23

good, all the bulbs go out

Answer 24

B

Answer 25

good

Answer 26

B

Answer 27

I think that's it too (not sure but that's my best guess too)

Answer 28

that's a good attempt but not quite

you need to calculate the total resistance by adding up the resistance and calculate the current based on that, since all resistors in series have equal current

Answer 29

C

Answer 30

80 is the resistance not the current

V = IR, if voltage is 120 and resistance is 80 what's the current?

Answer 31

OH A

Answer 32

good