Question

A series of precise measurements were made on a resistor with unknown characteristics and voltage drops (V) occurring at certain current values (I) were measured as follows.

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a) Investigate whether the resistance has a linear characteristic and whether V = IR ohm law is valid, with a resistance value of R.

b) Calculate V for I = 0.18 using a fourth order interpolation polynomial.

I
-1.0
-0.5
-0.25
0.25
0.5
1.0
V
-193
-41
-13.56
13.56
41
193
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Transcribed Image Text

I -1.0 -0.5 -0.25 0.25 0.5 1.0 V -193 -41 -13.56 13.56 41 193

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