please help with my lab reports!! thank you!! Does amount of current through a b

Question

please help with my lab reports!! thank you!!

Does amount of current through a battery in a circuit ppeal to constant or to depend on the number of bulbs in a circuit, and how they are Part 3 Adding More Bulbs n part 1, you have seen that two bulbs arranged in series as in circuit II bulbs B and C pictured below both glow dimmer about one-fourth the brightness) than one bulb (bulb A in I). E Circuit I Circuit II Circuit V Set up circuits l and ll, but first make sure the two batteries you use are each equally good at lighting a bulb. Close the switches to turn on the bulbs only while making your observations. Now add a third bulb to circuit II o make circuit v. Record your observations of the relative brightness of the bulbs on the brightness scale below. In recording your observations pay attention to large differences in brightness that you may observe, rather than small differences that could occur if two of the "identical" bulbs are, in fact, not identical. Observations Brightness Scale Not lit Standard' very one-bulb bright Lab 16-5

Explanation / Answer

1] Here in each circuits , more bulbs are added in series mode, we knoaw that current is same in a series mode, so here same current is equally distributed in three cases.

2] when more bulbs get added in a series way, eventhouh the voltage and resistance of individual bulbs add up to get the total one, current remains same in a series mode, so here same current is equally distributed in three cases.

In series mode ; For circuit 1

Vtotal= V

Rtotal= R

Itotal= I

For circuit 2

Vtotal= V1+V2

Rtotal= R1+R2

Itotal= I

For circuit 3

Vtotal= V1+V2+ V3

Rtotal= R1+R2 + R3

Itotal= I

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