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What is the breakdown voltage of PN junction diode?
A Zener diode doesn't allow almost any current to flow below a certain voltage. Above this voltage (the breakdown voltage), the amount of current that can flow is almost unlimited; meaning that the device acts as an "open" for lower voltages, and as a "short" for higher voltages.
When performing insulation resistance tests on devices containing semiconductors diodes what precations must be taken and why?
Insulation tests inserts high voltage DC across what ever is being tested. This voltage could be higher that the diodes peak reverse voltage. The diode might bridge across the PRV rating using a voltage higher than its normal operating voltage and destroy the diode. All variable frequency drives and soft starts will have a label on them warning against preforming this type of test with this type of equipment in the circuit. Disconnect the load from the drives when meggering a downstream load.
If the resistance in ohms is higher than the voltage what does that mean?
Voltage is not measured in ohms. It is measured in volts.
What size circuit breaker should be used if you use 5 horsepower of air-conditioning?
To answer this question a voltage value must be given. Circuit breakers protect the conductors that feed the load. The lower the voltage value, the higher the current value, hence a larger the wire size is needed and therefore larger the breaker size for the circuit. In reverse the higher the voltage value, the lower the current value, hence a smaller the wire size can be used therefore smaller the breaker size for the circuit.
What causes voltage on 1999 Saturn sl2 to go from 12.2V to 14V at random times?
The cause is the voltage regulator within the alternator (working normal). When the voltage higher it is charging the battery like after you start your car or have the headlights and wipers on. The voltage regulator keeps your battery charged up. In order to charge the battery, voltage must be higher than battery voltage.
What happens when something with higher volts is plugged into an outlet with lower volts?
Pl. answer me.. what happened when the DC magnet will be supplied low voltage then the rated. Nirmalesh
What will happen to a motor if it is supplied with lower voltage than its rated voltage?
The amperage to the motor will go higher.
Does electricity cost more if a higher voltage is supplied by a utility supplier?
NO you pay by the kilowatt-hour
A zener diode operates in?
In a reverse bias higher than the break down voltage.
What happens when a capacitor when it is connected to a higher voltage?
If you apply a higher voltage to a capacitor than it is rated it could over heat and explode.
When a 3.3V zener diode and a 5V zener diode are connected in parallel what is the average reverse break down voltage?
There will be no "average" reverse breakdown voltage. When the applied voltage reaches 3.3v, the 3.3v zener will conduct and the voltage will go no higher. The 5v zener will never conduct because the voltage across it will never go higher than 3.3v The only way the 5 volt zener will ever conduct is if the 3.3v zener fails. ALAN H.
What is amount of voltage supplied at night?
In theory, voltage should be the same around the clock. In practice you may get a tad higher voltage at nights, as there's less load on the system. With most people asleep, there aren't as many machines running.
What is the difference of silicon diode and germanium diode?
A silicon diode has a voltage drop of approximately 0.7V, while a germanium diode has a voltage drop of approximately 0.3V. Though germanium diodes are better in the area of forward voltage drop, silicon diodes are cheaper to produce and have higher breakdown voltages and current capabilities.
What is sta-bil?
A voltage stabilizer is an electrical appliance used to feed constant voltage current to electrical gadgets like ACs and computers, and protects them from damage due to voltage fluctuations. It works on the principle of a transformer, where the input current is connected to primary windings and output is received from secondary windings. When there is a drop in incoming voltage, it activates electromagnetic relays which add to more number of turns in the secondary winding, thus giving higher voltage which compensates for loss in output voltage. When there is rise in the incoming voltage, the reverse happens, and, thus, the voltage at the output side remains almost unchanged.
What happens if an atom is supplied with excess energy?
An electron may change to an excited state, and an electron may move to a higher orbit.
What happens inside a voltmeter when you switch it from a lower to a higher voltage range?
When you switch a voltmeter from a lower to a higher voltage range, an additional resistor is added in series with the meter, increasing the voltage necessary to create the same voltage drop across or current flow through the actual meter movement.
What happens to a 220v stereo when connected to 110v?
Stereo can't work unless sufficient voltage , same will be connected to higher input voltage your system will be damaged.
