Physics, asked by navyashree1, 1 year ago

a wire of resistance r is cut into 2 part and then connected in parallel find the equivalent resistance

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Answered by Harsh2906

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navyashree1: thanx can you answer this question- a 3000 volt geyser is operated for 2 hrs a day,a 300 volt for 4 hrs a day, 6-5 watt lamp 10 hrs a day what will be the monthly conducting of electrical unit. find total cost of compression of electricity in 1 unit cost is 5.40

Answered by SaiSoumya

Initial resistance of wire is 'r'
After the wire is cut into two equal parts , resistance of each part becomes r/2

Now they are connected in parallel .
Let new resistance be r*

So , 1/r*=2/r+2/r
=4/r
r*=r/4

therefore the equivalent resistance in one fourth of the intial one

Hope this help you,,,,,,have a good day....!!
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SaiSoumya: can i pls do it later,,,m preparing for a test

navyashree1: okay BTW all the best for your test

SaiSoumya: thank u so much...which class?

SaiSoumya: 11?

navyashree1: class 10

SaiSoumya: kk

navyashree1: you

SaiSoumya: 12

navyashree1: Hi are you free then can you solve a question for me ple

navyashree1: a 3000 volt geyser is operated for 2 hrs a day,a 300 volt for 4 hrs a day, 6-5 watt lamp 10 hrs a day what will be the monthly conducting of electrical unit. find total cost of compression of electricity in 1 unit cost is 5.40

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