Currrent Density | Ohm's Law |Resistance and variation of resistance with temp.

Ohm's Law|Resistance|Question

Resistance Ohm's law || Resistivity

The equivalent resistance of a series combination of two resistances is X ohm. If the resistance are of 10 ohm and 40 ohm respectively, the value of X will be

A student while verifying Ohm's law calculated the value of resistance of the resistor for each set of observation .However, the values of resistance were slightly different from the actual value . Is his experiment wrong ? Justify your answer.

Average and instantaneous current | Drift velocity | Mobility| Current density | Ohm's experimental law | Ohm's Law from drift velocity | Temperature dependence of resistivity for conductors | semi comductors and super conductors | Temperature dependence of resistance

State Ohm's law. Derive an expression for the equivalent resistance of a number of resistances in parallel.

Tutorial based on Current | ohm's law and resistance

Factors Affecting Electrical Conductivity Of Electrolytic Solutions|Ohm's Law|Resistance |Resistivity Or Specific Resistance|Conductance|Conductivity|Molar Conductivity |Relation Between Conductivity And Molar Conductivity |Summary