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Answer
One of the conditions for Ohm's Law to apply is that the temperature of a conductor MUST remain constant. And, unfortunately, this is difficult to achieve because as the applied voltage increases, the resulting current causes the temperature of the conductor to rise -thus negating Ohm's Law!!
For Ohm's Law to apply, the ratio of voltage to current must remain constant for variations in voltage. If it doesn't, then the conductor/device is NOT obeying Ohm's Law. Period! So if, for example, you increase the voltage across a lamp, you will find that the ratio varies as the voltage increases, and this is because the resistance is increasing due to an increase in temperature. So, in this example, the temperature is the reason why lamps don't obey Ohm's Law.
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What does the i stand for in ohms law?
Current
What are the Limitations elements of ohm's law?
Ohms law does not consider inductance
What would be the effect of increasing the voltage of the battery?
Ohm's Law states that Voltage = Resistance (Ohms) * Current (Ampere). So when you increase voltage, you increase current.
Does the diode satisfy ohms law Explain?
no
How do conductors obey the 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!
What is the main objection of ohm's law in measuring resistance?
Temperature. Ohms law is applicable to measure resistance of an element at constant temperature only.
Example of a scientific law?
Current is proportional to the voltage provided the conductor is at the same temperature - Ohms Law There you go, hope this helped
How do you calculate 1.67 ohms?
ohms law.
Why ohms law is valid only for constant temperature and constant pressure?
Because by varying temperature ,the conductivity hence the resistivity varies so the constant varies.
What effect are there when resistance is increased in the size of the current?
Current is inversely proportional to resistance. If you double the resistance, you halve the current. Ohm's Law: Volts = Amps * Ohms Solve for Amps: Amps = Volts / Ohms
When does a thermostor obey ohm's law?
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.
Whose law explains the effect of temperature on the volume of gas at constant pressure?
Charles Law
How do you find conductance using ohms law?
To find the conductance using ohms law,you take the inverse of the resistance(/R)
What does the i stand for in ohms law?
Current
Is ohms law heat and light?
No.
Do transformer violates ohms law?
no
What effect does temperature have on the rate dissolving?
Temperature afftects the solubility...see Henrys Law and chemical kinetics
