Solve this-4- A student carries out an experiment and plots the V-I graph of three samples nbsp-of nichrome wire with resistances R1- R2 and R3 respectively -Figure- nbsp-Which of the following is true- nbsp-a- R1 - R2 - R3 nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp-b- R1 gt- R2 gt- R3-c- R3 gt- R2 gt- R1 nbsp- nbsp- nbsp- nbsp- nbsp- nbsp- nbsp-d- R2 gt- R3 gt- R1- nbsp-

Dear Student Q4 #160;Resistance=V/IResistance #160;will #160;be #160;given #160;by #160;slope #160;of #160;the #160;graph #160;between #16 ...

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Ohmic and Non Ohmic Resistors

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4. A student carries out an experiment and plots the V-I graph of three samples of nichrome wire with resistances R1, R2 and R3 respectively (Figure). Which of the following is true?
(a) R1 = R2 = R3 (b) R1 > R2 > R3
(c) R3 > R2 > R1 (d) R2 > R3 > R1

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R_{1}, R_{2}

R_{3}

R_{1}, R_{2}

R_{3}

△ A B C

a < b < c

r

r_{1}, r_{2}, r_{3}

A, B, C

r < r_{1} < r_{2} < r_{3}

△ A B C, r_{1} r_{2} + r_{2} r_{3} + r_{3} r_{1} = \frac{r_{1} r_{2} r_{3}}{r}

Δ

r_{1} + r_{2} + r_{3} - r = 4 R

r_{1} r_{2} + r_{2} r_{3} + r_{3} r_{1} = Δ^{2}

\frac{R_{1}}{r_{1}} + \frac{R_{2}}{r_{2}} + \frac{R_{3}}{r_{3}} =

△ A B C, r_{1} r_{2} + r_{2} r_{3} + r_{3} r_{1}

r_{1}, r_{2}

r_{3}

2 s

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