Plz give the Solution of this que.
For the following circuit, if a resistor is added in parallel with R1
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what happens to the current delivered by the battery?
Answers
sorry I don't know physics
It depends.
If you have a theoretically perfect battery, meaning zero internal resistance (and thus infinite current), when you add that second identical bulb in parallel, that new bulb will draw the same current as the original, and so the battery current will double.
However, every battery has some internal resistance of its own. So in a practical circuit, if Rbat << Rbulb, you will see an large increase in current. As the battery resistance grows relative to that if the bulbs, it sets the maximum current.
On top if that, a battery is a chemical engine, in the real world, and any given battery design can only supply so much continuous current. If the current in the single bulb case is close to that battery's maximum output, adding that second bulb may well cut the current through each bulb by nearly half.