A potential barrier of 0.4 V exists across a p-n junction. An electron enters the junction from the n-side with a speed of 6.0 × 10⁵ ms⁻¹. The speed with which electron enters the p side will be x/3 × 10⁵ ms⁻¹ the value of x is _ _ _ _ _ _ _. (Given mass of electron = 9 × 10⁻³1 kg, charge on electron = 1.6 × 10⁻¹9 C.)

Electronic Devices: JEE Main 2022 Physics question

JEE Main 2022 · 29 Jun, Evening shift · Q60

JEE Main 202229 Jun, Evening shiftPhysicsHardElectronic Devices66× since 2002

A potential barrier of 0.4 V exists across a p-n junction. An electron enters the junction from the n-side with a speed of 6.0

\times

10⁵ ms^

-

1. The speed with which electron enters the p side will be

{x \over 3} \times {10^5}

ms^

-

1 the value of x is _____________. (Given mass of electron = 9

\times

10^

-

31 kg, charge on electron = 1.6

\times

10^

-

19 C.)

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