Answer / shahulsnfa

diode conducts only in forward bias.the diode will break
down when it is revrse biased. but zener will conduct in
reverse bias also. break down will occur after some voltage
level which is more compare to diode

Answer / krishna chaitanya

diode converts ac to dc onely but zener diode convets ac to
dc and voltage also controlled its voltage controle range
is 15voltes to 200voltes

Answer / sunil guru

yes right
simple diode conducts in forward bias only....
whereas zener diode has the property to conduct beyond reverse bias(reverse break down voltage)
in practical it is used to create a reference voltage for comparison with with fundamental circuit voltage

Answer / zaleha

diode converts ac to dc onely but zener diode convets ac to
dc and voltage also controlled its voltage controle range
is 15voltes to 200voltes

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