Question

Which circuit has exactly two resistors connected in parallel?

Answer 1

A

Answer 2

hm. that's strange. A has 3 resistors in parallel, but if we look at the answer choices both B and D have two resistors in parallel unless I'm not counting them correctly

Answer 3

I think you are counting them correctly?

Answer 4

oh duh I know why D is not it, since the circuits on the left are in series with each other this would technically count as 2 circuits in parallel with 1 circuit for 3 total circuits, making B the better option

Answer 5

*circuits on the outer loop

Answer 6

Power?

Answer 7

good

Answer 8

B

Answer 9

you may be mixing up the definitions of direct current and alternating current

Answer 10

A

Answer 11

good

Answer 12

NOt sure about this one :/

Answer 13

to have the same voltage the two resistors must be in parallel so which looks like the best option?

Answer 14

D

Answer 15

good

Answer 16

B

Answer 17

well done

Answer 18

C

Answer 19

good

Answer 20

D

Answer 21

keep in mind these are parallel resistors so you cannot simply add them up this time

formula for total resistance

1/total resistance = 1/R + 1/R...etc.

so start by finding 1/R + 1/R... for the four resistors and then take the reciprocal of the sum to find the total resistance

Answer 22

A

Answer 23

good

Answer 24

for resistors in parallel, voltage must be the same, what's another way to describe/say voltage?

Answer 25

D

Answer 26

hm, not quite, D would be resistance not voltage

Answer 27

C

Answer 28

well they give off the same current

Answer 29

C would be current which is not the same for resistors in parallel (it would have to be series for the currents to be equal)

another way to say voltage is potential difference making A the best option.

Answer 30

D

Answer 31

keep in mind this is a paralell circuit so you cannot add up the resistances

1/total resistance = 1/R + 1/R + 1/R

Answer 32

B

Answer 33

awesome.

Answer 34

I would divide?

Answer 35

P = IV you just need to multiply current * potential difference

Answer 36

B

Answer 37

0.2 * 12 = ?

Answer 38

Ugh im sorry i dont even know what I was doing, Its c Duh