Nichrome alloy is designed to retain a constant resistance over a wide range of temperatures. So it is considered to be 'ohmic' or 'linear' because, when plotting current against voltage, it produces a straight-line graph, for variations in voltage.
So, yes, nichrome obeys Ohm's Law.
Ohm's Law only applies when the ratio of voltage to current is constant for variations in voltage. If you were to plot a graph of current against voltage, and the result is a straight line, then Ohm's Law applies; if the result is a curved line, then Ohm's Law does NOT apply.Ohm's Law is NOT a universal law; in fact, if barely qualifies as a 'law' at all because, in most cases, it does not work!Nichrome alloy is designed to retain a constant resistance over a wide range of temperatures. So it is considered to be 'ohmic' or 'linear' because, when plotting current against voltage, it produces a straight-line graph, for variations in voltage. So, nichrome obeys Ohm's Law.Thermistors and diodes produce curved graph lines and, so, are considered to be 'non-linear' or 'non-ohmic', and do NOT obey Ohm's Law.
Very few conductors obey Ohm's Law, and its the rise in temperature of the conductor when current flows though it that prevents it from obeying Ohm's Law. Some alloys, such as constantan, obey Ohm's Law over a limited range because, over that range, changes in temperature don't affect their resistance. It's really time that we stopped teaching Ohm's Law, as it is not universal, and applies to very few conductors and hardly any electronic components!
which obey ohms law ANSWER: Not all potentiometers are linear some are made to follow a logarithm function some follows an exponential function. A linear potentiometer will have a linear curve. Materials that obey Ohm's Law are called 'linear' or 'ohmic'; those that don't are called 'non-ohmic' or 'non-linear'.
In point of fact, vacuum tubes do obey Ohm's law. Everything electrical obeys Ohm's law. The reason vacuum tubes don't appear to obey the law is that not every consideration takes into account the fact that vacuum tubs have dynamicresistance. Ohm's law, as applied to "pure" ohmic resistors, requires constant resistance, which no material, no matter how good, exhibits. In the real world, you have to consider that resistance can vary along with voltage and current, and this "complicates" things.
Current
No semiconductor's do not obey ohm's laws.
I hope you mean the thermistor. If so,well it does not obey Ohms law. When current flows through the thermistor its temperature start increasing which reduces the resistance of the thermistor. A reduction in resistance at the same supply voltage will cause the current to increase. Thus it's not obeying Ohms law.
Ohm's Law only applies when the ratio of voltage to current is constant for variations in voltage. If you were to plot a graph of current against voltage, and the result is a straight line, then Ohm's Law applies; if the result is a curved line, then Ohm's Law does NOT apply.Ohm's Law is NOT a universal law; in fact, if barely qualifies as a 'law' at all because, in most cases, it does not work!Nichrome alloy is designed to retain a constant resistance over a wide range of temperatures. So it is considered to be 'ohmic' or 'linear' because, when plotting current against voltage, it produces a straight-line graph, for variations in voltage. So, nichrome obeys Ohm's Law.Thermistors and diodes produce curved graph lines and, so, are considered to be 'non-linear' or 'non-ohmic', and do NOT obey Ohm's Law.
the vibration produced in the coil of a speaker is due to current passing through it hence it obey ohms law
Very few conductors obey Ohm's Law, and its the rise in temperature of the conductor when current flows though it that prevents it from obeying Ohm's Law. Some alloys, such as constantan, obey Ohm's Law over a limited range because, over that range, changes in temperature don't affect their resistance. It's really time that we stopped teaching Ohm's Law, as it is not universal, and applies to very few conductors and hardly any electronic components!
ohms law.
30 ohmsAnswerAn incandescent lamp doesn't obey Ohm's Law, because the ratio of voltage to current changes as the supply voltage is varied. All you can say is that, when the applied voltage is 9.0 V, then the resistance will happen to be 30 ohms. If you change the applied voltage to some other value, then you will find the resistance will have changed too. Ohm's Law isn't a universal law; in fact, most materials and circuit devices do not obey Ohm's Law, and tungsten, from which lamp filaments are manufactured, is an example of a metal that does not obey Ohm's Law (we call them 'non-linear' or 'non-ohmic')
which obey ohms law ANSWER: Not all potentiometers are linear some are made to follow a logarithm function some follows an exponential function. A linear potentiometer will have a linear curve. Materials that obey Ohm's Law are called 'linear' or 'ohmic'; those that don't are called 'non-ohmic' or 'non-linear'.
In point of fact, vacuum tubes do obey Ohm's law. Everything electrical obeys Ohm's law. The reason vacuum tubes don't appear to obey the law is that not every consideration takes into account the fact that vacuum tubs have dynamicresistance. Ohm's law, as applied to "pure" ohmic resistors, requires constant resistance, which no material, no matter how good, exhibits. In the real world, you have to consider that resistance can vary along with voltage and current, and this "complicates" things.
Obey The Law was created on 1926-11-05.
To find the conductance using ohms law,you take the inverse of the resistance(/R)
what is the meaning of nichrome