A tunnel diode.
Its a power full Semiconductor device now we have..It is having Two terminals
A transistor is a small electronic device containing a semiconductor and having at least three electrical contacts, used in a circuit as an amplifier.
The four factors that determine the resistance of a material are resistivity (intrinsic property of the material), length (longer length increases resistance), cross-sectional area (smaller area increases resistance), and temperature (increases in temperature usually increase resistance). Examples could be copper with low resistivity, a longer wire having higher resistance, a thinner wire having higher resistance, and a material like a semiconductor having resistance affected by temperature changes.
A device's resistance to electricity, like in a wire's resistance to having electricity flowing through it, copper has very little, so that's why copper is used in wires.
It's where electronics begin. You cannot have any electronic device without having a chip inside it, and without the heroes of this industry we would be far behind where we are in the digital world of today.
A very high speed bipolar junction transistor having a metal-semiconductor emitter base junction instead of a semiconductor-semiconductor emitter base junction.
It's where electronics begin. You cannnot have any electronic device without having a chip inside it, and without the heros of this industry we would be far behind where we are in the digital world of today.
The definition of the word resistors is "a device having a designed resistance to the passage of an electric current."
JFET BFW20 shows negetive resistance when gate is grounded (VGS = 0) and vary Drain to source voltage and measure Drain current. As the voltage is increased, the drain current decreases. Prof.S.Lakshminarayana.
it is possible to make a microwave diode exhibit negative resistance by having delay between voltage and current in an avalanche together with transist time through the material . such devices are called avalanche transist time device. these are of 3 types 1. IMPATT 2. TRAPATT 3. BARITT
PNP stands forÊjunction transistor having an n-type semiconductorÊ setting between a p-type semiconductor as emitter and a p-type semiconductor as a collector.
The answer to this depends on the material from which the resistance is made. For most materials resistance increases with increasing temperature. This is referred to as having a "positive temperature coefficient". Some materials have a negative temperature coefficient; these do have uses in electronics.