Consider the circuit diagrammed at the right which has three different bulbs con

Question

Consider the circuit diagrammed at the right which has three different bulbs connected, each in its own loop, to a battery. In the circuit the oval bulb is brightest, the rectangular bulb second and the circular bulb is dimmest. What can you say about the current in each bulb compared to the current through the battery? What is your evidence/reasoning for this contention? What can you say about the potential difference across each bulb compared to the potential difference across the battery? What is your evidence/reasoning for this contention?

Explanation / Answer

1.more is the power across bulp ,more bright will it grow

power=voltage*current

since all are in parallel ,the voltage across each bulb is same ,so current will be large in bulb which grow more brightly

so current in oval is largest,followed by rectangular and then circular

(b) Since all bulb are in parallel,the voltage across each is same and equal to voltage of battery

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