MHT CET Physics question

Not in JEE Advanced syllabus

The diode is called an electronic valve since

(A)It permits the flow of electric current only in one direction from cathode to anodeCorrect
(B)It permits the flow of electric current only in one direction from anode to cathode in external circuit
(C)It permits current in both directions
(D)It permits the flow of electric current in any direction

Answer: (A)

Solution

Like a valve, a diode lets charge flow in one direction only and blocks the reverse flow, so (c) and (d) are wrong; in the vacuum diode the electrons

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Question ID VK-085447