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hafiz16
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hi I am new member of this forum..Plz tell me how to use this forum & how to ask Question from other members...Plz tell me differences b/w emf & voltage,Resistance & resistivity..
… etc etc etcIt is common in some fields, such as circuit theory, to refer to the voltage created by the emf as the emf. Some authors do not distinguish between the emf and the voltage it creates. Some use emf to refer to the open-circuit voltage and voltage to the potential difference when current is drawn
EMF (electromotive force) is the potential difference created by a source of energy, such as a battery, while voltage is the measure of the potential difference between two points in an electrical circuit. Essentially, EMF is the cause of voltage.
Resistance is the measure of how much a material resists the flow of electricity, while resistivity is the inherent property of a material that determines its resistance. Resistivity takes into account the material's dimensions, while resistance does not.
EMF is the cause of voltage, meaning that EMF creates a potential difference between two points in an electrical circuit. Voltage, on the other hand, is the measure of this potential difference.
Yes, the formula for resistance is R = V/I, where R is resistance, V is voltage, and I is current. The formula for resistivity is ρ = RA/L, where ρ is resistivity, R is resistance, A is cross-sectional area, and L is length.
Resistance and resistivity both hinder the flow of electricity by creating obstacles in the flow of electrons. The higher the resistance or resistivity, the more difficult it is for electricity to flow through a material.