Question

In which of the circuits does a current exist to light the bulb?
@Abhisar

Answer 1

i have no idea

Answer 2

It seems that your question has a few options. Could you post them too?
We can't help you with questions that provide insufficient information.

Answer 3

hold on

Answer 4

???

Answer 5

scanning picture

Answer 6

ohhh !!

Answer 7

#109

Answer 8

i say 5

Answer 9

why ?

Answer 10

trying to picture the inside of a lamp

Answer 11

it's not 5

Answer 12

no it's 4

Answer 13

For lighting up a bulb u need the two terminals of the bulb connected to the two terminals of the battery

Answer 14

Also the two terminals of the battery should not be connected directly to each other

Answer 15

so none of them
are correct

Answer 16

Now ur initial guess was correct

Answer 17

* no

Answer 18

i was correct?

Answer 19

yup

Answer 20

btw can i ask the name of the book ?

Answer 21

ok how bout 110 on scan i believe it goes with picture

Answer 22

Conceptual Physical Science

Answer 23

inflow of the current is always equal to the outflow

Answer 24

and 119

Answer 25

for the bulb to glow it have to be connected in parallel to the battery

Answer 26

y?

Answer 27

in 5 it is connected in parallel

Answer 28

i'm talking about 119 on the scan

Answer 29

oops i was talking about 109

Answer 30

it's ok

Answer 31

have u solved 109 yet?

Answer 32

yes, and 110

Answer 33

need help with 119

Answer 34

all right
power= Volts * Amps =\[\frac{ v^2 }{ R }\]
do u know this relation

Answer 35

no

Answer 36

hmm all right do u know ohm's law?

Answer 37

no

Answer 38

ok so lets solve this conceptually

Answer 39

look c is directly parallel with the battery is'nt it?

Answer 40

yes

Answer 41

so it will draw more current than A and B so it will grow brighter than A and B okay with this?

Answer 42

y?

Answer 43

because its in direct parallel combination it will have a less resistence

Answer 44

ok

Answer 45

and look A ans B those two bulbs are in series combination ok??

Answer 46

right

Answer 47

and if total resistence of the combination is 2R

Answer 48

then A and B both will have resistence R ok??

Answer 49

ok

Answer 50

now they have same resistence
so same current will flow through them ok??

Answer 51

so if lightbulb c is unscrewed then a & b will not work?
and if A if unscrew b will not work

Answer 52

now so the answer of the first question is
C will glow brightest and A and B will glow with same brightness
and 2nd answer will be--
C will draw the most current
and coming to the third part-----

Answer 53

if C is unscrewed then simply C will go out ok?

Answer 54

and if A is unscrewed then total combination that is A and B will go out but C will remain as it was
goi it ??

Answer 55

yep got it!

Answer 56

very good ^_^

Answer 57

\(\huge\ddot\smile\)

Answer 58

thank you

Answer 59

no problem :)
anytime