Please answer all the questions. PLEASE SHOW ALL WORK and make it clear so that

Question

Please answer all the questions. PLEASE SHOW ALL WORK and make it clear so that I can see how you derived the answer. Thanks!

We assign Library Genesis When we connect a number of light bulbs in a circuit with a battery, we can use our models of current, resistance, Kirchhoff's principles to predict the relative brightness of the bulbs. If the and be an of the current through that bulbs are all identical, then the brightness of a bulb will bulb (i.e., a brighter bulb has more current). The in the circuit shown on the right are all Predict which bulb or bulbs will be the brightest, and which bulb or bulbs will be the state any bulbs will have equal Explain your detail. This answer has not been graded yet. All three bulbs have a resistance of 30 n, and the battery has a potential difference of 8 V. 2. Determine the current through each of the bulbs Current in bulb A Current in bulb B Current in bulb C 3. From your answers to part 2, do you think your prediction in part 1 was correct? Why or why not?

Explanation / Answer

(a) Bulb A gets whole of the battery current.bulb B and C are in parallel and have equal resistance, so the total battery current gets divided equally. so A has the maximum current while as B and C has equal current which is equal to half of the current of A.

so the brightnes.s A> B=C.

(b) B and C are in parallel, so their reisitance= (1/30+1/30)-1= 15 ohm

now 15 ohm and 30 ohm of bulb A are in series, so the total resistamce of the circuit= 15+30=45 ohms

voltage = 8 v

so current in the circuit= V/R= 8/45=0.178 A

so current in bubb A=0.178 A

current in bulb B = current in bulb C= 0.178/2=0.089 A

(c)The predictions of the part 1 completely agree with the answers of part 2

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