Electronics - Diodes and Applications - Discussion

Discussion Forum : Diodes and Applications - General Questions (Q.No. 1)
What is a varistor?
a voltage-dependent resistor
a voltage-dependent diode
a current-dependent resistor
a current-dependent diode
Answer: Option
No answer description is available. Let's discuss.
22 comments Page 1 of 3.

Gemechis misgana said:   1 year ago
Good, Thanks all for explaining the answer.

Siddharth said:   3 years ago
Varistor is a semiconductor diode whose value of resistance depends on voltage applied, its not a resistor.

Manoj said:   5 years ago
If some can explain the advantages of IGBT ovr ovt.

Jeen said:   5 years ago
What is varistor? Someone explain.

Ramesh said:   6 years ago
What is the use of semiconductor devices?

Sekhar said:   7 years ago
Var = variable, istor = resistor.

Jayasankar said:   8 years ago
Varistor is an electronic component with an electrical resistance that varies with the applied voltage. It is also known as a Voltage Dependent Resistor (VDR).

Bharath kumar.S.P said:   9 years ago
The forward and reverse biased states of a diode can be compared to a variable resistor. A forward biased diode will drop only .3 or .7 V.

That corresponds to an internal resistance in the anode that drops from several Kilo-ohms at the point where conduction begins to several ohms where a diode is conducting heavily.

In the reverse bias state, resistance will be in the Mega-ohms until breakdown voltage is reached.

Donald said:   10 years ago
If referred as a semiconductor diode or a voltage dependent resistor, does it sound correct? I doubt.

Ram said:   10 years ago
A semiconductor diode with resistance dependent on the applied voltage.

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