Answer / waqas ali

Two methods:
1. Using multimeter which should have a built in provision
for checking of diode.
2. Connect +ve terminal of a 12VDC power supply to Annode
of diode and -ve terminal to the cathode. Check with
multimeter the voltage drop across diode. If it is ~0.7V,
then it's OK otherwise it's faulty.

Answer / surath

In multimeter there is a provision for checking diode
having diode symbol.By putting the two ends inside the
points if a continuity sound will come then the diode is
working.

Answer / ganesh

diode is work like a switch as reverse or forword baised we
can check from multimeter in set on resistance in ohm

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