Characteristics for Ohmic and Non Ohmic | Ohmic Conductors | Non Ohmic Conductors

Описание: #ohmic #nonohmic #characteristicsforohmicandnonohmic #ohmslaw #physicsclass10th
Ohmic Conductors (Linear Behavior):
Linear Relationship: Ohmic conductors exhibit a linear relationship between voltage (
V) and current (
I), following Ohm's Law:
=
⋅

V=I⋅R.

Constant Resistance: The resistance (

R) of ohmic conductors remains constant over a wide range of voltages and currents.

Ohmic Materials: Materials that follow Ohm's Law and have a constant resistance, such as most metals at a constant temperature, are considered ohmic.

Stable Temperature: Ohmic behavior assumes a stable temperature; changes in temperature can affect the resistance but generally within a linear relationship.

Simple Circuits: Ohmic behavior is commonly observed in simple circuits with resistors made of metals or other materials that obey Ohm's Law.

Non-Ohmic Conductors (Non-Linear Behavior):
Non-Linear Relationship: Non-ohmic conductors do not follow Ohm's Law; the relationship between voltage and current is nonlinear.

Variable Resistance: The resistance of non-ohmic conductors can vary with changes in voltage, current, or other external factors such as temperature.

Non-Ohmic Materials: Materials that do not follow Ohm's Law, such as semiconductors and some non-metallic conductors, exhibit non-ohmic behavior.

Temperature Sensitivity: Non-ohmic behavior may be influenced by temperature changes, and the resistance of the material can vary significantly with temperature fluctuations.

Complex Circuits: Non-ohmic behavior is often encountered in complex circuits containing components like diodes, transistors, and semiconductor devices.

Hysteresis: Some non-ohmic devices exhibit hysteresis, meaning the current-voltage relationship depends not only on the current conditions but also on the previous history of the system.