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What observation about the current in a metal conductor was the basis for Ohm's law?
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.
What else can I help you with?
Electric current in a metal conductor is carried by?
Electric current in a metal conductor is carried by a wire. This wire has been specifically adapted to carry this current.
Is metal coat hanger a conductor or insulator?
A metal coat hanger is a conductor of electricity because it is made of metal, which allows electric current to flow through it easily. Insulators, on the other hand, do not allow electric current to flow through them easily.
What electron carried the current in a metal conductor?
The valance electrons.
Is a dime an insulator or conductor?
A dime is a conductor of electricity because it is made of metal. Metal objects like dimes allow electric current to flow through them easily.
Is the electric current in a metal conductor is carried by positive ions?
Yes
Is screw contact a conductor or insulator?
A screw contact is typically made of metal, which is a conductor. This means it allows the flow of electric current through it.
What metal is a good conductor of thermal energy and electric current?
aluminum, copper,
Is metal hanger a conductor or insulators?
conductor its metal
Is wet metal a conductor?
Yes, metals when wet conduct electricity/electric current.
What shiny metal is a good conductor of thermal energy and electric current?
Tranition metals
Is a safety pin an insulator or conductor?
A safety pin is a conductor because it allows electric current to flow through it due to its metal material, which is a good conductor of electricity.
Is needle a conductor or insulator?
A needle is typically made of a conductive material, such as metal. This means it is a conductor of electricity, allowing electric current to flow through it easily. However, the type of metal the needle is made from can also affect its conductivity.
