151757 A $60 \mathrm{~W}$ bulb carries a current $0.5 \mathrm{~A}$. The total charge passing through it in $1 \mathrm{~h}$ is

151758 When a current $I$ is set up in a wire of radius $r$, the drift velocity is $v_{d}$. If the same current is set up through a wire of radius $2 r$, the drift velocity will be

151759 The mobility of free electrons (charge $=e$, mass $=m$ and relaxation time $=\tau$ ) in a metal is proportional to

151760 An aluminium (AI) rod with area of crosssection $4 \times 10^{-6} \mathrm{~m}^{2}$ has a current of $5 \mathrm{~A}$ flowing through it. Find the drift velocity of electron in the rod. Density of $\mathrm{Al}=2.7 \times 10^{3} \mathrm{kgm}^{-3}$ and atomic wt. $=27 \mathrm{u}$. Assume that each $\mathrm{Al}$ atom provides one electron.

151757 A $60 \mathrm{~W}$ bulb carries a current $0.5 \mathrm{~A}$. The total charge passing through it in $1 \mathrm{~h}$ is

151758 When a current $I$ is set up in a wire of radius $r$, the drift velocity is $v_{d}$. If the same current is set up through a wire of radius $2 r$, the drift velocity will be

151759 The mobility of free electrons (charge $=e$, mass $=m$ and relaxation time $=\tau$ ) in a metal is proportional to

151760 An aluminium (AI) rod with area of crosssection $4 \times 10^{-6} \mathrm{~m}^{2}$ has a current of $5 \mathrm{~A}$ flowing through it. Find the drift velocity of electron in the rod. Density of $\mathrm{Al}=2.7 \times 10^{3} \mathrm{kgm}^{-3}$ and atomic wt. $=27 \mathrm{u}$. Assume that each $\mathrm{Al}$ atom provides one electron.

151757 A $60 \mathrm{~W}$ bulb carries a current $0.5 \mathrm{~A}$. The total charge passing through it in $1 \mathrm{~h}$ is

151758 When a current $I$ is set up in a wire of radius $r$, the drift velocity is $v_{d}$. If the same current is set up through a wire of radius $2 r$, the drift velocity will be

151759 The mobility of free electrons (charge $=e$, mass $=m$ and relaxation time $=\tau$ ) in a metal is proportional to

151760 An aluminium (AI) rod with area of crosssection $4 \times 10^{-6} \mathrm{~m}^{2}$ has a current of $5 \mathrm{~A}$ flowing through it. Find the drift velocity of electron in the rod. Density of $\mathrm{Al}=2.7 \times 10^{3} \mathrm{kgm}^{-3}$ and atomic wt. $=27 \mathrm{u}$. Assume that each $\mathrm{Al}$ atom provides one electron.

151757 A $60 \mathrm{~W}$ bulb carries a current $0.5 \mathrm{~A}$. The total charge passing through it in $1 \mathrm{~h}$ is

151758 When a current $I$ is set up in a wire of radius $r$, the drift velocity is $v_{d}$. If the same current is set up through a wire of radius $2 r$, the drift velocity will be

151759 The mobility of free electrons (charge $=e$, mass $=m$ and relaxation time $=\tau$ ) in a metal is proportional to

151760 An aluminium (AI) rod with area of crosssection $4 \times 10^{-6} \mathrm{~m}^{2}$ has a current of $5 \mathrm{~A}$ flowing through it. Find the drift velocity of electron in the rod. Density of $\mathrm{Al}=2.7 \times 10^{3} \mathrm{kgm}^{-3}$ and atomic wt. $=27 \mathrm{u}$. Assume that each $\mathrm{Al}$ atom provides one electron.