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Calculate the amount of heat generated in an external load of resistance 8Ω if an a.c of peak value
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Dec 9, 2024
Calculate the amount of heat generated in an external load of resistance 8Ω if an a.c of peak value 5A is passed through it for 100s.
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calculate the amount of heat generated
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in an external load of resistance 8 ohms
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if an AC of f value 5 aere is passed
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through it for 100
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seconds calculate the amount of heat
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generated we are to calculate the amount
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of heat generated and to calculate the
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amount of H we are going to use the
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formula H isal to
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i² r
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t this is the formula we going to use
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calculate the amount of he
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generated in an external load of
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resistance 8 ohms we have our
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resistance R isal
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to
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8s keep an AC of P value 5 aamp which
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means our current I is equal to 5
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aamp is passed through it for 100
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seconds I also have our time p is equal
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to
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seconds but look at it they say if the F
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value AC of f value which means this is
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I
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not do you understand and now that we
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have I not remember the P value of the
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current is equal to 5 a and now we have
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to find iot s and to find iot squ which
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is what we going to use here we now see
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I
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root S
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value here isal
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to
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I
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over2 and this is going to give
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us this is going to be I not here is
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equal to 5 therefore you write 5 over <
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tk2 which is I
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[Music]
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s and therefore we are now going to end
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up having 5 / < tk2 will give us
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IUN mean s =
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to uh
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[Music]
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3.54
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54 ampere which is iot s so now we are
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going to use iot S = to R
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IUN
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S is =
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to I in this case therefore we will now
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say
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that since
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H H is = to
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i² r t in this case we will now have I
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here is equal to 5 3.5 4 we now have
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3.54 S * R the value of R here is 8
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therefore * 8 * T and the value of T
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here is 100 seconds therefore we have
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100 *
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100 therefore now see that our H which
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is the H hit generated when you multiply
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all these values you're going to have
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1,25
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28
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28 this our heat generated
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is25 28 we can now write it in standard
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form which is equal
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to H which implies that H is is = to
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[Music]
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1.0 * 10 power of 4 why did I say this 4
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1 2 3 4 You have 1
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2 1 2 3 and 4 therefore this is going to
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give us 1.0 * 10^ 4 and the heat
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generated now is going to be in ch
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because it is an energy therefore it is
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the Angels the unit is Angels therefore
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the unit generated is 1.0 * 10^ 4 CH
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which is our final
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answer so you can go through it again
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and see how it is
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