A long wire with a length of 1 = 500 m and cross-section area A = 1 mm² has a resistance of 14 2. i) Decide which material the wire is made of. You can use the following table as a reference Material Silver Copper Aluminum Conductivity o (106/Nm) 62 58 35 ii) If the concentration N of the material is 5 × 1027 m³, estimate the relaxation time t iii) This long wire is wound into a close-winding coil as shown in Figure Q2(d). The radius of the coil is a = 0.1 m and the gap between adjacent turns g can be considered as zero. Calculate the inductance of this coil Y³K 0.1 m (ö ə ə ə d m m m m m d ə ə ə z Figure Q2(d)

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Chapter12: Electronic Control Devices
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A long wire with a length of 1 = 500 m and cross-section area A = 1 mm²
has a resistance of 14 9.
i) Decide which material the wire is made of. You can use the following
table as a reference
Material
Silver
Copper
Aluminum
Conductivity o (106/Nm)
62
58
35
ii) If the concentration N of the material is 5 × 10²7 m³, estimate the
relaxation time T
iii) This long wire is wound into a close-winding coil as shown in
Figure Q2(d). The radius of the coil is a = 0.1 m and the gap between
adjacent turns g can be considered as zero. Calculate the inductance of
this coil
*³*
000000000000000,
0.1 m
Figure Q2(d)
Transcribed Image Text:A long wire with a length of 1 = 500 m and cross-section area A = 1 mm² has a resistance of 14 9. i) Decide which material the wire is made of. You can use the following table as a reference Material Silver Copper Aluminum Conductivity o (106/Nm) 62 58 35 ii) If the concentration N of the material is 5 × 10²7 m³, estimate the relaxation time T iii) This long wire is wound into a close-winding coil as shown in Figure Q2(d). The radius of the coil is a = 0.1 m and the gap between adjacent turns g can be considered as zero. Calculate the inductance of this coil *³* 000000000000000, 0.1 m Figure Q2(d)
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