Current Electricity and Electrical InstrumentMedium
Question
A continuous beam of electrons emitted by a heating filament are accelerated in free space by an electric field as shown in figure. The two stops at the left ensure that the electron beam has a uniform cross-section.
Options
A.Linear momentum of electron increases from A to B.
B.The electric current is from right to left
C.The magnitude of the current is same at A and B.
D.The current density is same at A and B.
Solution
Electrons are accelerated in opposite direction of electric field. Therefore speed of the electron is more at B than at A.
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