A 6 V battery attached to a resistor causes 2 A of current to flow through the resistor. When the same resistor is attached to a 12 V battery instead, the resistance of the resistor is ___ ohms.

A 2 a current flows through a resistor when a 6 v battery is connected to it. The resistance of the resistor is 6/2=3 amperes when the identical resistor is connected to a 12 v battery instead.

Electrical resistance is a measurement of an object's resistance to electrical current flow. The reciprocal number, electrical conductance, gauges how easily an electric current flows. Conceptually, electrical resistance and mechanical friction are comparable. Electrical resistance is measured in ohms (), the SI unit for electrical resistance, whereas electrical conductance is measured in siemens (S), formerly known as the mho and then denoted by. The substance an object is constructed of mostly determines how resistant it is. Electrical conductors, like metals, frequently have extremely low resistance and high conductance, in contrast to electrical insulators, like rubber, which can have extremely high resistance and low conductance. It is possible to quantify this relationship by measuring conductivity or resistivity.

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