(Solved): answer these pls 5. Parallel Light bulbs Look at the light bulb circuit shown below. The two bulbs a ...

5. Parallel Light bulbs Look at the light bulb circuit shown below. The two bulbs are both connected across the same two points (junction $$\mathrm{X}$$ and $$Y$$ ) in the circuit. Using the DC power supply apply a voltage of about $$2.5\mathrm{V}$$ across its terminals. Figure 5.1 - Two parallel light bulbs wired to a battery 7. More Complex Series and Parallel Networks Circuit (a) Circuit (b) Figure 7.1: Circuit (a) has two series light bulbs. Circuit (b) has two parallel light bulbs in series with another light balb. Prediction 7.1 In circuit (a), jdentical bulbs $$\mathrm{A}$$ and $$\mathrm{B}$$ glow with a certain brightness. An additional identical bulb $$\mathrm{C}$$ in parallel to $$\mathrm{B}$$ is now added as shown in circuit (b). Describe the brightness of bolbs $$A,B$$ and $$C$$ compared to the initial brightness of $$A$$ and $$B$$. Hint: You may wish to use terms like "final $$A$$ is a little brighter thar initial $$A$$ " or "initial B is very much brighter than finalc". Observation 7.1 $$?$$ Bulld the following circuit and test your prediction. By connecting and disconnecting the wire that appears as a dotted line you can easily make your observation. Figure 7.2: Connerumg and aisconnecting bulb $$\mathrm{C}$$ Explanation $$7.1$$ Can you explain the results you observe? Hint: You mav need to consider the non-ohmic nroperties of the light bulb.