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A: Depends on meter leads voltage polarity and the diode itself orientation to these polarity. One way is should show a low impedance + to anode Reverse the diode it should be hi impedance
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How do you find voltage rating of zener diode?
It should be marked, either on the diode or on the box it came in. If you can't find the mark, then you have to measure it yourself. Take the zener diode, a battery or DC power supply, and a resistor. Wire them all in series, with the NEG (cathode) end of the diode closer to the POSitive side of the battery or power supply. Connect your voltmeter across the diode, and slowlyincrease the power supply output voltage while watching the meter. You'll see the voltage across the diode increase slowly, tracking the power supply, until you reach the Zener voltage. At that point, the voltage across the diode won't increase any more; it'll just stay there at its 'reverse breakdown' voltage, which is the Zener voltage. (If the voltage across the diode goes to around a volt and won't go any higher, the polarity is wrong. Reverse either the diode or else the power supply.) You probably want a wild guess at what the value of the resistor should be. That's difficult to specify if I don't know the power rating of the Zener diode you're testing. I'm going to make the following suggestion completely in the blind: Select the resistor to limit the series current to 30 mA even if you have to crank the power supply up to 50 volts. R = 50/.03 = 1.5 to 2 K-ohms, rated for a couple of watts.
How do you identify leads in a diode?
Basically, one end of the diode should be grey, while the rest of the diode is black. The grey end is the cathode (out) end, while the black end is the Anode (in) end. So the flow is from anode towards cathode. Using a multimeter, set the meter to the diode symbol (can't show graphics on Answers) but it is a triangle on its side (shaped like an arrow fired from a bow, with 3 lines meeting at the tip of the arrow). Put the red positive probe against the anode wire, and the black negative probe against the cathode wire. You should see a reading indicating that electricity is being detected. Now reverse the probes and you should fail to get a reading (as the flow is only one way). You now know which end is which for certain. (Some diodes (which come in many sizes and capacities) may not be marked at all, so using a multimeter is sometimes essential.) There is more to diodes than in my answer, so I advise a search on youtube for videos on diodes, so gaining greater depth and clarity on diodes than I have been able to put here.
What picture represents two resistors wired in parallel?
It represents that two resistors are connected in parallel.
What is an offshore column of rock that was once connected to mainland?
rocks that are offshore. cheating on your homework I see
Notes on linear pipeline processors?
is a cascade of processing stages which are linearly connected to perform a fixed function over a stream of data flowing from one end to the other.
What happens to the diode if it has high piv?
It can be connected in high reverse bias voltage .
What is the configuration of the ohmmeter?
An ohmmeter is connected in parallel to a resistor. Be sure that there is no power in the circuit when testing.
How could unmarked diodes have its cathode leads identified using an ohmmeter?
Assuming the red lead of the ohmmeter is more positive than the black lead, then checking the impedance of the diode with the ohmmeter, in both directions, will identify the cathode as the black lead when the measured impedance is low. This, however, will only work if the voltage developed by the ohmmeter is greater than the forward bias voltage of the diode, typically 0.7 volts.
What will happens if zener diode and resistance are connected in parallel?
If diode is connected in series then current will flow only in one direction. ie. Current flow occurs only when diode is forward biased. ANSWER: It depends are the diodes are connected in series if they are back to back no current will flow if connected in the forward conduction mode then they will conduct.
What is the source of diode in reverse biased condition?
The anod terminal of diode is connected with negative and cathod is connected to positive
Can an ohmmeter be used to read a resistance while a source is connected?
Yes. It NEEDS a source to be connected.
Do the ohmmeter test confirm the go-on-go test for the diode?
Yes, but only at a basic level. If the diode measures low resistance in one direction, high resistance in the other, you know that it is not short-circuited. But... 1. If it's a voltage-regulator/reference (Zener) diode, you do not know whether it has the correct breakdown voltage, 2. If diode leakage is important, you have not tested for leakage and the ohmmeter test does not do this reliably, 3. Your ohmmeter test voltage is probably no more than 9 volts, so you have not tested for high-voltage breakdown, and 4. If it's a rectifier (especially a high-current diode) you have not tested its forward voltage at full load current.
Should the ohmmeter be connected to the circuit while the power is being applied or only when the circuit is turned off?
Turn off the supply before using the ohmmeter,it will damaged your ohmmeter when supply is present.
How can the cathode end of a zener diode be determinded using an ohmmeter?
Hard to do. If your Ohmmeter battery is just 1-1/2 volts, then you simply put the test leads on the diode one way, then the other way. The way that show a meter reading will have the black lead on the 'cathode', if you assume, as most do, that electrons are issued from the " - " or 'minus' side of the battery. BUT . . . if your Ohmmeter voltage is above the zener's trigger voltage, then you will get a reading both ways.
What is leakage current of zener diode?
The leakage current of a (zener) diode is the current that leaks when a diode is connected in reverse biased.
What is the leakage current of zener diode?
The leakage current of a (zener) diode is the current that leaks when a diode is connected in reverse biased.
What meter must NEVER be connected to a circuit when the circuit power is turned on?
An Ohmmeter.
