Please include diagrams: a) A 100-W light bulb and a 40-W light bulb are both rated...

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Physics

Please include diagrams:
a) A 100-W light bulb and a 40-W light bulb are both rated athousehold voltage. i) Which light bulb will be brighter if the twobulbs are connected in parallel and this combination connected to ahousehold voltage source? ii) Which light bulb will be brighter ifthey are connected in series and this combination connected to ahousehold voltage? b) A battery charges a parallel plate capacitor.After it is fully charged, it is then disconnected from the batteryand the gap between the plates is filled with a dielectric. Howdoes the charge on the plates and the potential difference betweenthem change? c) A battery is used to charge a parallel platecapacitor. After it is fully charged, the battery is disconnectedand the plates are pulled apart. What happens to the potentialenergy stored in the capacitor and the potential difference acrossthe capacitor?

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4.4 Ratings (807 Votes)

ai when bulbs are connected in parallel then the voltage acrossthem must be sameWe know that power is given byP V2 R thereforeR V2PSince voltage is same in parallel therfore the bulb with 100 Wpower will have less See Answer

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