define resistance, also name the method of combination of resistance .
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Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is measured in ohms, symbolized by the Greek letter omega (Ω). Ohms are named after Georg Simon Ohm (1784-1854), a German physicist who studied the relationship between voltage, current and resistance.
If there are more than one path for the flow of current in a circuit then the combination of resistances is called Parallel Combination. 2. In parallel combination current through each resistor is different.
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