Resistance is an opposition - to the flow of charge in a circuit, The symbol for a resistor is, Voltmeters measure - potential difference, Ammeters measure - current, The symbol for a voltmeter is, The symbol for an ammeter is, The longer the piece of wire - the higher the resistance, The wider the piece of wire - the lower the resistance, Resistance is - directly proportional to the length of a wire, For a fixed resistor - the potential difference is directly proportional to the current , IV graph for a fixed resistor, IV graph for a filament bulb, IV graph for a diode, Ammeters are connected - in series, Voltmeters are connected - in parallel,

Resistance

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