how many bulbs of resistance 6 ohm should be joined in parallel to draw a current of 2 amperes from a battery of 3 volts.?
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HEY!!
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▶️Suppose n resistances of 6 ohm are connected in parallel and the resultant resistance=R
▶️1/R=n/6=>R=6/n
▶️Now Current I=2 A,Voltage V=3 volts
▶️By ohm's law V=IR
▶️3=2x6/n
▶️n=4
▶️▶️Hence 4 bulbs are connected in parallel.
___________________________
▶️Suppose n resistances of 6 ohm are connected in parallel and the resultant resistance=R
▶️1/R=n/6=>R=6/n
▶️Now Current I=2 A,Voltage V=3 volts
▶️By ohm's law V=IR
▶️3=2x6/n
▶️n=4
▶️▶️Hence 4 bulbs are connected in parallel.
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