There are many examples of these.
I would compare a linear device as a device giving a linear output as a result of the input. This can be an amplifier or simply the circuits that makes up the amplifier.
A non-linear device could be a computer chip or a logic chip that is either on or off (only 2 stages) on both input and output.
Some devices combine linear and non linear working modes. A typical OpAmp has got 2 inputs that can vary, where as the output is either On (close to input voltage of the circuit) or Off (close to input negative voltage or GND of the circuit)
Other forms of linearities can be within a single transistor.
It may have a linear voltage curve. This curve can also be non linear. This most often very dependent upon temperature.
non linear
Usually non-linear.Usually non-linear.Usually non-linear.Usually non-linear.
Non-linear.
You can measure things with a linear scale. Practically impossible with a non-linear scale.
Linear is a straight line and non linear could be a curve or anything but a straight line
A: THE WORD IS LINEAR. yes it is not a very linear device as a function of current
imitation of ohms law is that it can be applied only to linear devices it cannot be allowed to non linear devices...
Zener diode is not a linear device... it is non-linear one. Since linear devices are those devices which have linear characteristics(V-I CHAR.), or follows the Ohm's law i.e. voltage is directly proportional to current. but in case of Zener diode ohm's law fails down. the V-I char. in both forward biased & reverse biased condition is non-linear. So. Zener diode is non-linear device
When you are using semi conductors or the conductor is at a very high temperature.AnswerOhm's Law is not a universal law, and only applies to a limited range of conductors. For Ohm's Law to apply, the ratio of voltage to current must remain constant for variations in voltage; if the ratio varies, then Ohm's Law does not apply. Materials for which Ohm's Law applies are called 'linear' or 'ohmic'; those for which it doesn't apply are called 'non-linear' or 'non-ohmic'. There are far more 'non-linear' materials than there are 'linear'; these include the metal tungsten, electrolytes, gases, and semiconducting devices, such as diodes, etc.The ratio of voltage to current is termed 'resistance', and applies to both linear and non-linear devices. However, the equation, R = E/I, does NOT represent Ohm's Law; it is derived from the definition of the ohm. This equation applies for both linear and non-linear devices. But, for non-linear devices, it only applies at a particular voltage, as the ratio varies with changes in voltage.
For Ohm's Law to apply to a conductor, the ratio of voltage to current must remain constant for changes in voltage.If the ratio changes when the applied voltage changes, then Ohm's Law does not apply.It's as simple as that!Conductors or devices to which Ohm's Law applies are termed 'linear' or 'ohmic'; those to which Ohm's Law does not apply are termed 'non-linear' or 'non-ohmic'. There are far more non-linear devices than linear devices, from which we can conclude that Ohm's Law is not an universal law.
In saturation region transistor acts as a non linear device i.e, there is no linear relation between input and output because in saturation region output does not change for variation in input. Whereas in other operating mode transistor acts as a linear device.
The simple answer is any phenomena that is changing in a non-linear manner.
non linear
You cannot apply ohm's law to non-linear devices. This is because, the non-linearity introduces different V-I characteristics which cannot be answered by mere Ohm's law.
"A device for which the output is, within a given dynamic range, linearly proportional to the input" e.g. a spring scale is linear device for measuring weight.
Linear elements :In an electric circuit, a linear element is an electrical element with a linear relationship between current andvoltage. Resistors are the most common example of a linear element; other examples include capacitors,inductors, and transformers.Nonlinear Elements :A nonlinear element is one which does not have a linear input/output relation. In a diode, for example, the current is a non-linear function of the voltage.Most semiconductor devices have non-linear characteristics.
Usually non-linear.Usually non-linear.Usually non-linear.Usually non-linear.