Drift speed of electrons, when 1.5 A of current flows in a copper wire of cross section 5 mm^{2}, is v, if the electron density in copper is 9 10^{28}/m^{3} the value of v in mm/s is close to (take charge of electron to be=1.6 10^{−19}C)

a. |
0.2 |
b. |
3 |

c. |
2 |
d. |
0.02 |

Drift speed of electrons, when 1.5 A of current flows in a copper wire of cross section 5 mm^{2}, is v, if the electron density in copper is 9 10^{28}/m^{3} the value of v in mm/s is close to (take charge of electron to be=1.6 10^{−19}C)

a. |
0.2 |
b. |
3 |

c. |
2 |
d. |
0.02 |

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