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Describe the relationship between voltage and current for the resistors?
R = V/I Therfore the resistance is proportional to the voltage and inversely proportional to the current.
Is a voltmeter a linear scale?
This is because the resistance is measured by applying a fixed voltage to the resistor and measuring the current. Since I = V/R, the current/resistance relation is non-linear.
How the resistance value for the linear resistance can be changed?
Resistance can be changed by strain over time and changes in the temperature. Resistance thermometers are sensors that are used to measure temperature by correlating the resistance of the RTD elements.
Is a Resistor a nonlinear device?
It is a linear device if it is not a wire wound resistor. These become non linear to AC at high frequencies because of their inherent inductance.
Can Norton's theorem be applied to network which contains non linear resistance?
yesAnswerNo it cannot, any more than Ohm's Law can be applied to circuits with non-linear elements.
Is resistance a linear device?
YES it is linear. It is a passive device classified as linear however as frequency increases its behavior will change.
What is linear Potentiometer?
A linear potentiometer is a potentiometer that changes linearly with rotation of the knob. A 30% degree turn will change the resistance 30%. It's a direct relationship. This is in contrast to log potentiometers, which change resistance logarithmically with turns in the knob.
What a few example of non linear resistance?
Two examples of non linear resistance is a diode and a light bulb.
Describe the relationship between voltage and current for the resistors?
R = V/I Therfore the resistance is proportional to the voltage and inversely proportional to the current.
How is the resistance value for a linear resistance changed?
The resistance value for linear resistance is changed by changing the wavelength of the current or by installing additional resistors in the circuit. This restricts the amount of electricity which flows through the wiring.The resistance value for the linear resistance can be changed through strain over time. It can also be changed by changes in temperatures, such as going from hot to cold.
Why the scale of an ohm meter is non linear?
V = I*R R = V/I If we fix the voltage at 1 then R = I^-1 The change in the resistance scale is the derivative R dr = I^-1 di R dr = -I^-2 R dr = -1/(I^2) Explanation: The change in the resistance measurement decreases by the inverse of the current squared.
Does voltage versus current indicate a linear relationship?
Yes, provided the resistance is constant. If the resistance varies with current, then you have a non-linear circuit
If a linear graph has a negative slope what can you say about the dependant variable?
You can say that the variables are inversely proportional.
What is a difference between DC and ac resistance and expline DC resistasce?
DC is just direct current into a resistance it is a linear function. AC if the resistance is non reactive it would be the same linear function.
The mathematical relationship between current voltage and resistance is known as?
Ohm's LawAnswerIt's not known as anything; it's simply an equation. Ohm's Law describes constant proportionality between current and voltage for certain, but not all, materials (linear or ohmic) -it has nothing to do with this equation.
Can the rate of change be linear or nonlinear?
Yes, the rate of change can be linear or non-linear.
Is a voltmeter a linear scale?
This is because the resistance is measured by applying a fixed voltage to the resistor and measuring the current. Since I = V/R, the current/resistance relation is non-linear.
