T-Mobile Wi-Fi F 99%D 12:12 2. Consider the circuit shown to the right comaining
ID: 1638897 • Letter: T
Question
T-Mobile Wi-Fi F 99%D 12:12 2. Consider the circuit shown to the right comaining an ideal power supply an ammeter lor cument Probe and identical bulbe. With the switch open one bubislit the other is out. a When the switch is closed lights are lit. What happens to the brightness of the bulb hat was tially Compare the brightness of the when the What happens to the ammener Nor current probe)reading whenthe switch 3. Comider the circuit down to the right containing an ideal power supply and five identical a. Are bulbs land 2 connected in series or parallel with b. Are bulbs 3,4, and 5 connected in series parallel with one another? c. How would you describe the amargement of bulbs I d. Rank the brightness the bulls from brightest using symbols and For example, if bulb A was brighterthan equally bright bulhes BandC which themselves were brighter than bulb D you would write: A B.C D. Explain your e. lfbulb 4were removed from the cincuit what would happem to the brightness the remaining bulbs would this dange i bulh 3erswere removed rather than a Explain 2 of 2Explanation / Answer
2
a) The brightness of the initially lit bulb remains same as the voltage across the bulb remains same even on the addition of any number of bulbs in parallel.
b) Due to similar reason, the brightness of the two bulbs are same.
c) On adding more resistors in parallel, the overall resistance of the circuit decreases. So, current in the circuit increases and hence the ammeter will show increased reading.
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