Drift of Electrons and the Origin of Resistivity
« Previous Topic: Combination of Resistors Next Topic: Electric Current »
PHXII03:CURRENT ELECTRICITY

357026 Two wires \(A\) and \(B\) of the same material, having radii in the ratio \(1:2\) and carry current in the ratio \(4:1\). The ratio of drift speed of electrons in \(A\) and \(B\) is

1 \(1:16\)
2 \(16:1\)
3 \(1:4\)
4 \(4:1\)
PHXII03:CURRENT ELECTRICITY

357027 Two conducting spheres of radii \(r\) and 2\(r\) are placed at very long separation. Each sphere possesses charge \(Q\). These spheres are connected with a conducting wire of resistance \(R\). The initial current in the wire is

1 \(\frac{Q}{{\pi { \in _o}rR}}\)
2 \(\frac{Q}{{2\pi { \in _o}rR}}\)
3 \(\frac{Q}{{4\pi { \in _o}rR}}\)
4 \(\frac{Q}{{8\pi { \in _o}rR}}\)
NCERT Exemplar
PHXII03:CURRENT ELECTRICITY

357028 What is the drift velocity of electrons, if the current flowing through a copper wire of \(1\;\,mm\) diameter is \(1.1\,A\,?\) Assume that, each atom of copper contributes one electron. (Take, density of \(Cu = 9\;g\;c{m^{ - 3}}\) and atomic weight of \(Cu = 63\,)\)

1 \(0.3\;\,mm\;{s^{ - 1}}\)
2 \(0.5\;\,mm\;{s^{ - 1}}\)
3 \(0.1\,\;mm\;{s^{ - 1}}\)
4 \(0.2\;\,mm\;{s^{ - 1}}\)
PHXII03:CURRENT ELECTRICITY

357029 Drift velocity \({{\rm{v}}_d}\) varies with the intensity of electric field as per the relation

1 \({{\rm{v}}_d} \propto E\)
2 \({{\rm{v}}_d} = {\rm{constant}}\)
3 \({{\rm{v}}_d} \propto {E^2}\)
4 \({{\rm{v}}_d} \propto \frac{1}{E}\)
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII03:CURRENT ELECTRICITY

357026 Two wires \(A\) and \(B\) of the same material, having radii in the ratio \(1:2\) and carry current in the ratio \(4:1\). The ratio of drift speed of electrons in \(A\) and \(B\) is

1 \(1:16\)
2 \(16:1\)
3 \(1:4\)
4 \(4:1\)
PHXII03:CURRENT ELECTRICITY

357027 Two conducting spheres of radii \(r\) and 2\(r\) are placed at very long separation. Each sphere possesses charge \(Q\). These spheres are connected with a conducting wire of resistance \(R\). The initial current in the wire is

1 \(\frac{Q}{{\pi { \in _o}rR}}\)
2 \(\frac{Q}{{2\pi { \in _o}rR}}\)
3 \(\frac{Q}{{4\pi { \in _o}rR}}\)
4 \(\frac{Q}{{8\pi { \in _o}rR}}\)
NCERT Exemplar
PHXII03:CURRENT ELECTRICITY

357028 What is the drift velocity of electrons, if the current flowing through a copper wire of \(1\;\,mm\) diameter is \(1.1\,A\,?\) Assume that, each atom of copper contributes one electron. (Take, density of \(Cu = 9\;g\;c{m^{ - 3}}\) and atomic weight of \(Cu = 63\,)\)

1 \(0.3\;\,mm\;{s^{ - 1}}\)
2 \(0.5\;\,mm\;{s^{ - 1}}\)
3 \(0.1\,\;mm\;{s^{ - 1}}\)
4 \(0.2\;\,mm\;{s^{ - 1}}\)
PHXII03:CURRENT ELECTRICITY

357029 Drift velocity \({{\rm{v}}_d}\) varies with the intensity of electric field as per the relation

1 \({{\rm{v}}_d} \propto E\)
2 \({{\rm{v}}_d} = {\rm{constant}}\)
3 \({{\rm{v}}_d} \propto {E^2}\)
4 \({{\rm{v}}_d} \propto \frac{1}{E}\)
NEET DIGITAL LIBRARY
PHXII03:CURRENT ELECTRICITY

357026 Two wires \(A\) and \(B\) of the same material, having radii in the ratio \(1:2\) and carry current in the ratio \(4:1\). The ratio of drift speed of electrons in \(A\) and \(B\) is

1 \(1:16\)
2 \(16:1\)
3 \(1:4\)
4 \(4:1\)
PHXII03:CURRENT ELECTRICITY

357027 Two conducting spheres of radii \(r\) and 2\(r\) are placed at very long separation. Each sphere possesses charge \(Q\). These spheres are connected with a conducting wire of resistance \(R\). The initial current in the wire is

1 \(\frac{Q}{{\pi { \in _o}rR}}\)
2 \(\frac{Q}{{2\pi { \in _o}rR}}\)
3 \(\frac{Q}{{4\pi { \in _o}rR}}\)
4 \(\frac{Q}{{8\pi { \in _o}rR}}\)
NCERT Exemplar
PHXII03:CURRENT ELECTRICITY

357028 What is the drift velocity of electrons, if the current flowing through a copper wire of \(1\;\,mm\) diameter is \(1.1\,A\,?\) Assume that, each atom of copper contributes one electron. (Take, density of \(Cu = 9\;g\;c{m^{ - 3}}\) and atomic weight of \(Cu = 63\,)\)

1 \(0.3\;\,mm\;{s^{ - 1}}\)
2 \(0.5\;\,mm\;{s^{ - 1}}\)
3 \(0.1\,\;mm\;{s^{ - 1}}\)
4 \(0.2\;\,mm\;{s^{ - 1}}\)
PHXII03:CURRENT ELECTRICITY

357029 Drift velocity \({{\rm{v}}_d}\) varies with the intensity of electric field as per the relation

1 \({{\rm{v}}_d} \propto E\)
2 \({{\rm{v}}_d} = {\rm{constant}}\)
3 \({{\rm{v}}_d} \propto {E^2}\)
4 \({{\rm{v}}_d} \propto \frac{1}{E}\)
Join With Us for More Updates
PHXII03:CURRENT ELECTRICITY

357026 Two wires \(A\) and \(B\) of the same material, having radii in the ratio \(1:2\) and carry current in the ratio \(4:1\). The ratio of drift speed of electrons in \(A\) and \(B\) is

1 \(1:16\)
2 \(16:1\)
3 \(1:4\)
4 \(4:1\)
PHXII03:CURRENT ELECTRICITY

357027 Two conducting spheres of radii \(r\) and 2\(r\) are placed at very long separation. Each sphere possesses charge \(Q\). These spheres are connected with a conducting wire of resistance \(R\). The initial current in the wire is

1 \(\frac{Q}{{\pi { \in _o}rR}}\)
2 \(\frac{Q}{{2\pi { \in _o}rR}}\)
3 \(\frac{Q}{{4\pi { \in _o}rR}}\)
4 \(\frac{Q}{{8\pi { \in _o}rR}}\)
NCERT Exemplar
PHXII03:CURRENT ELECTRICITY

357028 What is the drift velocity of electrons, if the current flowing through a copper wire of \(1\;\,mm\) diameter is \(1.1\,A\,?\) Assume that, each atom of copper contributes one electron. (Take, density of \(Cu = 9\;g\;c{m^{ - 3}}\) and atomic weight of \(Cu = 63\,)\)

1 \(0.3\;\,mm\;{s^{ - 1}}\)
2 \(0.5\;\,mm\;{s^{ - 1}}\)
3 \(0.1\,\;mm\;{s^{ - 1}}\)
4 \(0.2\;\,mm\;{s^{ - 1}}\)
PHXII03:CURRENT ELECTRICITY

357029 Drift velocity \({{\rm{v}}_d}\) varies with the intensity of electric field as per the relation

1 \({{\rm{v}}_d} \propto E\)
2 \({{\rm{v}}_d} = {\rm{constant}}\)
3 \({{\rm{v}}_d} \propto {E^2}\)
4 \({{\rm{v}}_d} \propto \frac{1}{E}\)
For More Updates join with Us