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What portion of the volt-ampere characteristics of the diode is linear when is forward biased?
Below the diode's Forward Voltage (Vf) typically 0.7V, the curve is at (roughly) zero. At around 0.5 it begins to curve upward, and at around 0.7V, the voltage drop is almost constant (the curve heads straight upwards to infinity). See link.
How do you test led distribution intensity curve and export IES files?
when you want to test led distribution intensity curve and IES files, we will be talk this kind of equipment which is goniophotometer. This device is an automatic light distribution intensity 3D curve testing system. It can test many Optical parameters, like total luminous flux, zonal luminous flux etc. According to IESNA-LM-79-08, we will talk the rotating mirror goniophotometer, like LSG-2000 Goniophotometer with Rotating Mirror, this kind of goniophotometer can fully meet demand, it combined all advantages of goniophotometer, the test result have high accuracy.
What is the use of magnetization curve of DC shunt generator?
The armature voltage is a critical parameter in the determination of performance characteristics for the DC machine. The armature voltage has been shown to be proportional to the magnetic flux density per pole and the armature speed. Thus, the armature voltage will also exhibit nonlinear behavior when saturation occurs. The analysis of DC machine performance typically requires that the characteristics of the armature voltage saturation be known. This information is typically provided in a plot of the armature voltage vs. field current (magnetization curve) for a given operating speed
In what region of their characteristic curve are zener diodes operated?
Zener diodes are normally operated in their reverse breakdown voltage curve.
Is the working voltage of led is equal to it's knee voltage?
A: LED follows an exponential curve just like a regular diode. However their make up moves the forward voltage from 1.8 volts to 3.2 volts and higher this differs from a regular diode where is the forward voltage is around .6 to.7 volts. Because of the higher voltage across these devices they cannot dissipate much power.
What are the three characteristics of a supply curve?
The three characteristics of a supply curve are the slope, shift, and the curve's position. Together they help determine supply and demand trends.
What are the major characteristics of an indifference curve?
The three major characteristics of an indifference curve are: 1. They are negatively sloped 2. They are convex to the origin 3. Indifference curve cannot be intersected
What are the reverse characteristics of an led?
Unless the LED is a dual color LED, its reverse characteristics are similar to an ordinary diode.
What is the characteristics shape of a logistic growth curve?
The classic "S" shaped curve that is characteristic of logistic growth.
You want the characteristics of perfect inelastic demand curve?
A verticle demand curve, where a change in price does not effect quantity.
What letter is used to refer to the characteristics shaoe of the logistic growth curve?
what letter is used to refer to the characteristic shape of the logistic growth curve
What letter is used to refer to the characteristics shape of the logistic growth curve?
S
What is the letter used to refer to the characteristics shape of an exponential growth curve?
J
What is the letter used to refer to the characteristics shape of the logistic growth curve?
S
What are characteristics of an indifference curve?
indifferent curves are convex to their origin, they do not intersect, and have a negative slope
Magnetising characteristics of DC shunt generator?
the magnetizing curve is the relation b/w air gap flux and the field winding current armature EMF. the resulting curve is called magnetizing characteristics or open circuit characteristics. at any speed by recognizing that the induced emf is directly proportional to the speed
What are the three characteristics of the demand curve?
Characterstics of demand curve are-- 1) It is a curve from left to right 2) It shows the quantity demanded and price of a commodity 3) Higher the price lesser is the quantity demanded and vice-versa
