Drift of Electrons and the Origin of Resistivity
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NEET DIGITAL LIBRARY
PHXII03:CURRENT ELECTRICITY

357022 A conductor wire having \({10^{29}}\) free electrons/\({m^3}\) carries a current of 20 \(A\). If the cross-section of the wire is \(1\,m{m^2}\), then the drift velocity of electrons will be \((e = 1.6 \times {10^{ - 19}}C)\)

1 \(1.25 \times {10^{ - 4}}m{s^{ - 1}}\)
2 \(1.25 \times {10^{ - 3}}m{s^{ - 1}}\)
3 \(1.25 \times {10^{ - 5}}m{s^{ - 1}}\)
4 \(6.25 \times {10^{ - 5}}m{s^{ - 1}}\)
KCET - 2011
PHXII03:CURRENT ELECTRICITY

357023 Find the drift velocity in \(Cu\) wire if it has 1\(A\) current through \(2\,m{m^2}\) cross-section. Free electron density is \(8.5 \times {10^{34}}c{m^{ - 3}}.\)

1 \(0.036\,cm{s^{ - 1}}\)
2 \(0.36\,mm{s^{ - 1}}\)
3 \(0.036\,mm{s^{ - 1}}\)
4 \(0.36\,cm{s^{ - 1}}\)
PHXII03:CURRENT ELECTRICITY

357024 In a metallic conductor, under the effect of applied electric field, the free electrons of the conductor

1 move in the curved paths from lower potential to higher potential
2 drift from higher potential to lower potential.
3 move in the straight line paths in the same direction
4 move with the uniform velocity throughout from lower potential to higher potential.
JEE - 2023
PHXII03:CURRENT ELECTRICITY

357025 A cylindrical conductor of diameter \(0.1\,mm\) carries a current of \(90\,mA\). The current density (in \(A\,{m^{ - 2}}\)) is (\(\pi = 3\))

1 \(1.2 \times {10^7}\)
2 \(6 \times {10^6}\)
3 \(3 \times {10^6}\)
4 \(2.4 \times {10^7}\)
KCET - 2017
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PHXII03:CURRENT ELECTRICITY

357022 A conductor wire having \({10^{29}}\) free electrons/\({m^3}\) carries a current of 20 \(A\). If the cross-section of the wire is \(1\,m{m^2}\), then the drift velocity of electrons will be \((e = 1.6 \times {10^{ - 19}}C)\)

1 \(1.25 \times {10^{ - 4}}m{s^{ - 1}}\)
2 \(1.25 \times {10^{ - 3}}m{s^{ - 1}}\)
3 \(1.25 \times {10^{ - 5}}m{s^{ - 1}}\)
4 \(6.25 \times {10^{ - 5}}m{s^{ - 1}}\)
KCET - 2011
PHXII03:CURRENT ELECTRICITY

357023 Find the drift velocity in \(Cu\) wire if it has 1\(A\) current through \(2\,m{m^2}\) cross-section. Free electron density is \(8.5 \times {10^{34}}c{m^{ - 3}}.\)

1 \(0.036\,cm{s^{ - 1}}\)
2 \(0.36\,mm{s^{ - 1}}\)
3 \(0.036\,mm{s^{ - 1}}\)
4 \(0.36\,cm{s^{ - 1}}\)
PHXII03:CURRENT ELECTRICITY

357024 In a metallic conductor, under the effect of applied electric field, the free electrons of the conductor

1 move in the curved paths from lower potential to higher potential
2 drift from higher potential to lower potential.
3 move in the straight line paths in the same direction
4 move with the uniform velocity throughout from lower potential to higher potential.
JEE - 2023
PHXII03:CURRENT ELECTRICITY

357025 A cylindrical conductor of diameter \(0.1\,mm\) carries a current of \(90\,mA\). The current density (in \(A\,{m^{ - 2}}\)) is (\(\pi = 3\))

1 \(1.2 \times {10^7}\)
2 \(6 \times {10^6}\)
3 \(3 \times {10^6}\)
4 \(2.4 \times {10^7}\)
KCET - 2017
For More Updates join with Us
PHXII03:CURRENT ELECTRICITY

357022 A conductor wire having \({10^{29}}\) free electrons/\({m^3}\) carries a current of 20 \(A\). If the cross-section of the wire is \(1\,m{m^2}\), then the drift velocity of electrons will be \((e = 1.6 \times {10^{ - 19}}C)\)

1 \(1.25 \times {10^{ - 4}}m{s^{ - 1}}\)
2 \(1.25 \times {10^{ - 3}}m{s^{ - 1}}\)
3 \(1.25 \times {10^{ - 5}}m{s^{ - 1}}\)
4 \(6.25 \times {10^{ - 5}}m{s^{ - 1}}\)
KCET - 2011
PHXII03:CURRENT ELECTRICITY

357023 Find the drift velocity in \(Cu\) wire if it has 1\(A\) current through \(2\,m{m^2}\) cross-section. Free electron density is \(8.5 \times {10^{34}}c{m^{ - 3}}.\)

1 \(0.036\,cm{s^{ - 1}}\)
2 \(0.36\,mm{s^{ - 1}}\)
3 \(0.036\,mm{s^{ - 1}}\)
4 \(0.36\,cm{s^{ - 1}}\)
PHXII03:CURRENT ELECTRICITY

357024 In a metallic conductor, under the effect of applied electric field, the free electrons of the conductor

1 move in the curved paths from lower potential to higher potential
2 drift from higher potential to lower potential.
3 move in the straight line paths in the same direction
4 move with the uniform velocity throughout from lower potential to higher potential.
JEE - 2023
PHXII03:CURRENT ELECTRICITY

357025 A cylindrical conductor of diameter \(0.1\,mm\) carries a current of \(90\,mA\). The current density (in \(A\,{m^{ - 2}}\)) is (\(\pi = 3\))

1 \(1.2 \times {10^7}\)
2 \(6 \times {10^6}\)
3 \(3 \times {10^6}\)
4 \(2.4 \times {10^7}\)
KCET - 2017
NEET DIGITAL LIBRARY
PHXII03:CURRENT ELECTRICITY

357022 A conductor wire having \({10^{29}}\) free electrons/\({m^3}\) carries a current of 20 \(A\). If the cross-section of the wire is \(1\,m{m^2}\), then the drift velocity of electrons will be \((e = 1.6 \times {10^{ - 19}}C)\)

1 \(1.25 \times {10^{ - 4}}m{s^{ - 1}}\)
2 \(1.25 \times {10^{ - 3}}m{s^{ - 1}}\)
3 \(1.25 \times {10^{ - 5}}m{s^{ - 1}}\)
4 \(6.25 \times {10^{ - 5}}m{s^{ - 1}}\)
KCET - 2011
PHXII03:CURRENT ELECTRICITY

357023 Find the drift velocity in \(Cu\) wire if it has 1\(A\) current through \(2\,m{m^2}\) cross-section. Free electron density is \(8.5 \times {10^{34}}c{m^{ - 3}}.\)

1 \(0.036\,cm{s^{ - 1}}\)
2 \(0.36\,mm{s^{ - 1}}\)
3 \(0.036\,mm{s^{ - 1}}\)
4 \(0.36\,cm{s^{ - 1}}\)
PHXII03:CURRENT ELECTRICITY

357024 In a metallic conductor, under the effect of applied electric field, the free electrons of the conductor

1 move in the curved paths from lower potential to higher potential
2 drift from higher potential to lower potential.
3 move in the straight line paths in the same direction
4 move with the uniform velocity throughout from lower potential to higher potential.
JEE - 2023
PHXII03:CURRENT ELECTRICITY

357025 A cylindrical conductor of diameter \(0.1\,mm\) carries a current of \(90\,mA\). The current density (in \(A\,{m^{ - 2}}\)) is (\(\pi = 3\))

1 \(1.2 \times {10^7}\)
2 \(6 \times {10^6}\)
3 \(3 \times {10^6}\)
4 \(2.4 \times {10^7}\)
KCET - 2017
Join With Us for More Updates