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Electron, Photon, Photoelectric Effect and X-Rays — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsElectron, Photon, Photoelectric Effect and X-Rays1 Mark
MCQ
A cathode emits $1.8\times 10^{14}$ electrons per second, when heated. When 400V is applied to anode all the emitted electrons reach the anode. The charge on electron is $1.6\times 10^{-19}C$. The maximum anode current is
  • A
    $2.7\ \mu A$
  • ✓
    $29\ \mu A$
  • C
    $72\ \mu A$
  • D
    $29\ \mu A$
✓

Answer

Correct option: B.
$29\ \mu A$
$29\ \mu A$

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