A metal conductor of length $1 \mathrm{~m}$ rotates vertically about one of its ends at angular velocity 5…
A metal conductor of length $1 \mathrm{~m}$ rotates vertically about one of its ends at angular velocity 5 radians per second. If the horizontal component of earth's magnetic field is $0.3 \times 10^{-4} \mathrm{~T}$, then the e.m.f. developed between the two ends of the conductor is
depends on the nature of the metal used
depends on the intensity of the radiation
depends both on the intensity of the radiation and the metal used
is the same for all metals and independent of the intensity of the radiation.
Solution
emf. developed is given by
$
\varepsilon_{\text {ind }}=\frac{1}{2} \mathrm{~B} \omega \mathrm{R}^2=50 \mu \mathrm{V} \text {. }
$