Physics, asked by Deepu2365, 1 year ago

Answer of Question. please fast

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Answered by GawthamCR7
1
the conductors of electric heating devices are made up of alloys because the alloys cannot be damaged even at high temperatures and they usually have different properties than the constituent elements.
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Deepu2365: What u hve written 1/ ???
GawthamCR7: r1 r2 r3
Deepu2365: no 1/ ? = 1/r1 +.....
GawthamCR7: 1/R1+1/R2..
Deepu2365: 1/ _____=1/r1+1/r2....
GawthamCR7: R effective
Deepu2365: ohk
Answered by gautam96
1
(1)Why toster ,heater wire are made up of Alloy ?
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this is because the alloys have electric resistance then that are pure metals so it is designed to work for this purpose.

and alloys disorder of the atom causes additional electron sharing.

(2) Here the three resistors of 3 ohm 4 ohm and 12 ohm are connected in parallel.

show the equivalent will be:

1/R= 1/R1+ 1/R2+ 1/R3

1/R = 1/3+1/4+1/12

1/R= (4+3+1)/12

1/R= 8/12

1/R=2/3

so,

R= 3/2 ohm

= 1.5 ohm

Deepu2365: it is 8/12
GawthamCR7: that is1/R
GawthamCR7: then R is 12/8
Deepu2365: he wrote 6/12
GawthamCR7: who wrote
Deepu2365: nothing leave
GawthamCR7: kk
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