When using a triode, as an amplifier, the electrons are emitted by (a) grid and collected by cathode only (b) cathode and collected by the anode only (c) anode and collected by cathode only (d) anode and collected by the grid and by cathode

Answer: (b). In a triode the heated cathode emits electrons by thermionic emission. The grid is kept negative, so it controls the electron flow but collects none; the positive anode (plate) collects them. So the answer is (b) cathode and collected by the anode only.

When using a triode, as an amplifier, the electrons are emitted by | NEET 1996 (AIPMT)

Q11NEET 1996 · AIPMTEasy

Other / Mixed

When using a triode, as an amplifier, the electrons are emitted by

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Answer: (b)

In a triode the heated cathode emits electrons by thermionic emission.
The grid is kept negative, so it controls the electron flow but collects none; the positive anode (plate) collects them.
So the answer is (b) cathode and collected by the anode only.

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