151766 When a current $I$ flows through a wire, the drift velocity of the electrons is $v$. When current 2I flows through another wire of the same material having double the length and double the area of cross-section, the drift velocity of the electrons will be

151767 The contribution in the total current flowing through a semiconductor due to electrons and holes are $\frac{3}{4}$ and $\frac{1}{4}$ respectively. If the drift velocity of electrons is $\frac{5}{2}$ times that of holes at this temperature, then the ratio of concentration of electrons and holes is

151768 How many electrons per second constitute a current of one microampere?

151771 In hydrogen discharge tube, it is observed that through a given cross-section $3.13 \times 10^{15}$ electrons are moving from right to left and $3.12 \times 10^{15}$ protons are moving from left to right. The current in the discharge tube and its direction will be

151772 Charge passing through a conductor of cross section area $A=0.3 \mathrm{~m}^{2}$ is given by $q=3 t^{2}+5 t+$ 2 in coulomb, where $t$ is in second. What is the value of drift velocity at $t=2 s$ ?
(Given, $\mathbf{n}=\mathbf{2} \times 10^{25} / \mathrm{m}^{3}$ )

151766 When a current $I$ flows through a wire, the drift velocity of the electrons is $v$. When current 2I flows through another wire of the same material having double the length and double the area of cross-section, the drift velocity of the electrons will be

151767 The contribution in the total current flowing through a semiconductor due to electrons and holes are $\frac{3}{4}$ and $\frac{1}{4}$ respectively. If the drift velocity of electrons is $\frac{5}{2}$ times that of holes at this temperature, then the ratio of concentration of electrons and holes is

151768 How many electrons per second constitute a current of one microampere?

151771 In hydrogen discharge tube, it is observed that through a given cross-section $3.13 \times 10^{15}$ electrons are moving from right to left and $3.12 \times 10^{15}$ protons are moving from left to right. The current in the discharge tube and its direction will be

151772 Charge passing through a conductor of cross section area $A=0.3 \mathrm{~m}^{2}$ is given by $q=3 t^{2}+5 t+$ 2 in coulomb, where $t$ is in second. What is the value of drift velocity at $t=2 s$ ?
(Given, $\mathbf{n}=\mathbf{2} \times 10^{25} / \mathrm{m}^{3}$ )

151766 When a current $I$ flows through a wire, the drift velocity of the electrons is $v$. When current 2I flows through another wire of the same material having double the length and double the area of cross-section, the drift velocity of the electrons will be

151767 The contribution in the total current flowing through a semiconductor due to electrons and holes are $\frac{3}{4}$ and $\frac{1}{4}$ respectively. If the drift velocity of electrons is $\frac{5}{2}$ times that of holes at this temperature, then the ratio of concentration of electrons and holes is

151768 How many electrons per second constitute a current of one microampere?

151771 In hydrogen discharge tube, it is observed that through a given cross-section $3.13 \times 10^{15}$ electrons are moving from right to left and $3.12 \times 10^{15}$ protons are moving from left to right. The current in the discharge tube and its direction will be

151772 Charge passing through a conductor of cross section area $A=0.3 \mathrm{~m}^{2}$ is given by $q=3 t^{2}+5 t+$ 2 in coulomb, where $t$ is in second. What is the value of drift velocity at $t=2 s$ ?
(Given, $\mathbf{n}=\mathbf{2} \times 10^{25} / \mathrm{m}^{3}$ )

151766 When a current $I$ flows through a wire, the drift velocity of the electrons is $v$. When current 2I flows through another wire of the same material having double the length and double the area of cross-section, the drift velocity of the electrons will be

151767 The contribution in the total current flowing through a semiconductor due to electrons and holes are $\frac{3}{4}$ and $\frac{1}{4}$ respectively. If the drift velocity of electrons is $\frac{5}{2}$ times that of holes at this temperature, then the ratio of concentration of electrons and holes is

151768 How many electrons per second constitute a current of one microampere?

151771 In hydrogen discharge tube, it is observed that through a given cross-section $3.13 \times 10^{15}$ electrons are moving from right to left and $3.12 \times 10^{15}$ protons are moving from left to right. The current in the discharge tube and its direction will be

151772 Charge passing through a conductor of cross section area $A=0.3 \mathrm{~m}^{2}$ is given by $q=3 t^{2}+5 t+$ 2 in coulomb, where $t$ is in second. What is the value of drift velocity at $t=2 s$ ?
(Given, $\mathbf{n}=\mathbf{2} \times 10^{25} / \mathrm{m}^{3}$ )

151766 When a current $I$ flows through a wire, the drift velocity of the electrons is $v$. When current 2I flows through another wire of the same material having double the length and double the area of cross-section, the drift velocity of the electrons will be

151767 The contribution in the total current flowing through a semiconductor due to electrons and holes are $\frac{3}{4}$ and $\frac{1}{4}$ respectively. If the drift velocity of electrons is $\frac{5}{2}$ times that of holes at this temperature, then the ratio of concentration of electrons and holes is

151768 How many electrons per second constitute a current of one microampere?

151771 In hydrogen discharge tube, it is observed that through a given cross-section $3.13 \times 10^{15}$ electrons are moving from right to left and $3.12 \times 10^{15}$ protons are moving from left to right. The current in the discharge tube and its direction will be

151772 Charge passing through a conductor of cross section area $A=0.3 \mathrm{~m}^{2}$ is given by $q=3 t^{2}+5 t+$ 2 in coulomb, where $t$ is in second. What is the value of drift velocity at $t=2 s$ ?
(Given, $\mathbf{n}=\mathbf{2} \times 10^{25} / \mathrm{m}^{3}$ )