Temperature Dependence of Resistivity
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PHXII03:CURRENT ELECTRICITY

357540 The \({I-V}\) graph for a conductor at two different temperatures \({100^{\circ} {C}}\) and \({400^{\circ} {C}}\) is as shown in the figure. The temperature coefficient of resistance of the conductor is about (in per degree Celsius)
supporting img

1 \({3 \times 10^{-3}}\)
2 \({6 \times 10^{-3}}\)
3 \({9 \times 10^{-3}}\)
4 \({12 \times 10^{-3}}\)
KCET - 2024
PHXII03:CURRENT ELECTRICITY

357541 The resistance of a wire at 300 \(K\) is found to be \(0.3\Omega \) . If the temperature co-efficient of resistance of wire is \(1.5 \times {10^{ - 3}}{K^{ - 1}}\), the temperature at which the resistance becomes 0.6 \(W\) is

1 \(720\,K\)
2 \(345\,K\)
3 \(993\,K\)
4 \(690\,K\)
KCET - 2009
PHXII03:CURRENT ELECTRICITY

357542 For a metallic wire, the ratio of voltage to corresponding current is

1 Independent of temperature
2 Increases with rise in temperature
3 Increases or decreases with rise in temperature depending upon the metal
4 Decreases with rise in temperature
MHTCET - 2018
PHXII03:CURRENT ELECTRICITY

357543 A wire has a resistance of \(3.1\Omega \) at \(30^\circ C\) and a resistance \(4.5\Omega \) at \(100^\circ C.\) The temperature coefficient of resistance of the wire

1 \(0.0034^\circ {C^{ - 1}}\)
2 \(0.008^\circ {C^{ - 1}}\)
3 \(0.0012^\circ {C^{ - 1}}\)
4 \(0.0025^\circ {C^{ - 1}}\)
PHXII03:CURRENT ELECTRICITY

357544 Variation of resistance of the conductor with temperature is as shown. The temperature co-efficient \({\rm{(}} \propto {\rm{)}}\) of the conductor is
supporting img

1 \(\frac{{{R_0}}}{m}\)
2 \(m{R_0}\)
3 \({m_r}{R_0}\)
4 \(\frac{m}{{{R_0}}}\)
KCET - 2016
Join With Us for More Updates
PHXII03:CURRENT ELECTRICITY

357540 The \({I-V}\) graph for a conductor at two different temperatures \({100^{\circ} {C}}\) and \({400^{\circ} {C}}\) is as shown in the figure. The temperature coefficient of resistance of the conductor is about (in per degree Celsius)
supporting img

1 \({3 \times 10^{-3}}\)
2 \({6 \times 10^{-3}}\)
3 \({9 \times 10^{-3}}\)
4 \({12 \times 10^{-3}}\)
KCET - 2024
PHXII03:CURRENT ELECTRICITY

357541 The resistance of a wire at 300 \(K\) is found to be \(0.3\Omega \) . If the temperature co-efficient of resistance of wire is \(1.5 \times {10^{ - 3}}{K^{ - 1}}\), the temperature at which the resistance becomes 0.6 \(W\) is

1 \(720\,K\)
2 \(345\,K\)
3 \(993\,K\)
4 \(690\,K\)
KCET - 2009
PHXII03:CURRENT ELECTRICITY

357542 For a metallic wire, the ratio of voltage to corresponding current is

1 Independent of temperature
2 Increases with rise in temperature
3 Increases or decreases with rise in temperature depending upon the metal
4 Decreases with rise in temperature
MHTCET - 2018
PHXII03:CURRENT ELECTRICITY

357543 A wire has a resistance of \(3.1\Omega \) at \(30^\circ C\) and a resistance \(4.5\Omega \) at \(100^\circ C.\) The temperature coefficient of resistance of the wire

1 \(0.0034^\circ {C^{ - 1}}\)
2 \(0.008^\circ {C^{ - 1}}\)
3 \(0.0012^\circ {C^{ - 1}}\)
4 \(0.0025^\circ {C^{ - 1}}\)
PHXII03:CURRENT ELECTRICITY

357544 Variation of resistance of the conductor with temperature is as shown. The temperature co-efficient \({\rm{(}} \propto {\rm{)}}\) of the conductor is
supporting img

1 \(\frac{{{R_0}}}{m}\)
2 \(m{R_0}\)
3 \({m_r}{R_0}\)
4 \(\frac{m}{{{R_0}}}\)
KCET - 2016
For More Updates join with Us
PHXII03:CURRENT ELECTRICITY

357540 The \({I-V}\) graph for a conductor at two different temperatures \({100^{\circ} {C}}\) and \({400^{\circ} {C}}\) is as shown in the figure. The temperature coefficient of resistance of the conductor is about (in per degree Celsius)
supporting img

1 \({3 \times 10^{-3}}\)
2 \({6 \times 10^{-3}}\)
3 \({9 \times 10^{-3}}\)
4 \({12 \times 10^{-3}}\)
KCET - 2024
PHXII03:CURRENT ELECTRICITY

357541 The resistance of a wire at 300 \(K\) is found to be \(0.3\Omega \) . If the temperature co-efficient of resistance of wire is \(1.5 \times {10^{ - 3}}{K^{ - 1}}\), the temperature at which the resistance becomes 0.6 \(W\) is

1 \(720\,K\)
2 \(345\,K\)
3 \(993\,K\)
4 \(690\,K\)
KCET - 2009
PHXII03:CURRENT ELECTRICITY

357542 For a metallic wire, the ratio of voltage to corresponding current is

1 Independent of temperature
2 Increases with rise in temperature
3 Increases or decreases with rise in temperature depending upon the metal
4 Decreases with rise in temperature
MHTCET - 2018
PHXII03:CURRENT ELECTRICITY

357543 A wire has a resistance of \(3.1\Omega \) at \(30^\circ C\) and a resistance \(4.5\Omega \) at \(100^\circ C.\) The temperature coefficient of resistance of the wire

1 \(0.0034^\circ {C^{ - 1}}\)
2 \(0.008^\circ {C^{ - 1}}\)
3 \(0.0012^\circ {C^{ - 1}}\)
4 \(0.0025^\circ {C^{ - 1}}\)
PHXII03:CURRENT ELECTRICITY

357544 Variation of resistance of the conductor with temperature is as shown. The temperature co-efficient \({\rm{(}} \propto {\rm{)}}\) of the conductor is
supporting img

1 \(\frac{{{R_0}}}{m}\)
2 \(m{R_0}\)
3 \({m_r}{R_0}\)
4 \(\frac{m}{{{R_0}}}\)
KCET - 2016
NEET DIGITAL LIBRARY
PHXII03:CURRENT ELECTRICITY

357540 The \({I-V}\) graph for a conductor at two different temperatures \({100^{\circ} {C}}\) and \({400^{\circ} {C}}\) is as shown in the figure. The temperature coefficient of resistance of the conductor is about (in per degree Celsius)
supporting img

1 \({3 \times 10^{-3}}\)
2 \({6 \times 10^{-3}}\)
3 \({9 \times 10^{-3}}\)
4 \({12 \times 10^{-3}}\)
KCET - 2024
PHXII03:CURRENT ELECTRICITY

357541 The resistance of a wire at 300 \(K\) is found to be \(0.3\Omega \) . If the temperature co-efficient of resistance of wire is \(1.5 \times {10^{ - 3}}{K^{ - 1}}\), the temperature at which the resistance becomes 0.6 \(W\) is

1 \(720\,K\)
2 \(345\,K\)
3 \(993\,K\)
4 \(690\,K\)
KCET - 2009
PHXII03:CURRENT ELECTRICITY

357542 For a metallic wire, the ratio of voltage to corresponding current is

1 Independent of temperature
2 Increases with rise in temperature
3 Increases or decreases with rise in temperature depending upon the metal
4 Decreases with rise in temperature
MHTCET - 2018
PHXII03:CURRENT ELECTRICITY

357543 A wire has a resistance of \(3.1\Omega \) at \(30^\circ C\) and a resistance \(4.5\Omega \) at \(100^\circ C.\) The temperature coefficient of resistance of the wire

1 \(0.0034^\circ {C^{ - 1}}\)
2 \(0.008^\circ {C^{ - 1}}\)
3 \(0.0012^\circ {C^{ - 1}}\)
4 \(0.0025^\circ {C^{ - 1}}\)
PHXII03:CURRENT ELECTRICITY

357544 Variation of resistance of the conductor with temperature is as shown. The temperature co-efficient \({\rm{(}} \propto {\rm{)}}\) of the conductor is
supporting img

1 \(\frac{{{R_0}}}{m}\)
2 \(m{R_0}\)
3 \({m_r}{R_0}\)
4 \(\frac{m}{{{R_0}}}\)
KCET - 2016
Join With Us for More Updates
PHXII03:CURRENT ELECTRICITY

357540 The \({I-V}\) graph for a conductor at two different temperatures \({100^{\circ} {C}}\) and \({400^{\circ} {C}}\) is as shown in the figure. The temperature coefficient of resistance of the conductor is about (in per degree Celsius)
supporting img

1 \({3 \times 10^{-3}}\)
2 \({6 \times 10^{-3}}\)
3 \({9 \times 10^{-3}}\)
4 \({12 \times 10^{-3}}\)
KCET - 2024
PHXII03:CURRENT ELECTRICITY

357541 The resistance of a wire at 300 \(K\) is found to be \(0.3\Omega \) . If the temperature co-efficient of resistance of wire is \(1.5 \times {10^{ - 3}}{K^{ - 1}}\), the temperature at which the resistance becomes 0.6 \(W\) is

1 \(720\,K\)
2 \(345\,K\)
3 \(993\,K\)
4 \(690\,K\)
KCET - 2009
PHXII03:CURRENT ELECTRICITY

357542 For a metallic wire, the ratio of voltage to corresponding current is

1 Independent of temperature
2 Increases with rise in temperature
3 Increases or decreases with rise in temperature depending upon the metal
4 Decreases with rise in temperature
MHTCET - 2018
PHXII03:CURRENT ELECTRICITY

357543 A wire has a resistance of \(3.1\Omega \) at \(30^\circ C\) and a resistance \(4.5\Omega \) at \(100^\circ C.\) The temperature coefficient of resistance of the wire

1 \(0.0034^\circ {C^{ - 1}}\)
2 \(0.008^\circ {C^{ - 1}}\)
3 \(0.0012^\circ {C^{ - 1}}\)
4 \(0.0025^\circ {C^{ - 1}}\)
PHXII03:CURRENT ELECTRICITY

357544 Variation of resistance of the conductor with temperature is as shown. The temperature co-efficient \({\rm{(}} \propto {\rm{)}}\) of the conductor is
supporting img

1 \(\frac{{{R_0}}}{m}\)
2 \(m{R_0}\)
3 \({m_r}{R_0}\)
4 \(\frac{m}{{{R_0}}}\)
KCET - 2016