The figure shows data on the dependence ofthe current through a resistor on the

Question

The figure shows data on the dependence ofthe current through a resistor on the voltage across thatresistor. Is the resistor ohmic? The figure shows data on the dependence ofthe current through a resistor on the voltage across thatresistor. Is the resistor ohmic? What is the value of its resistance? R =   What is the value of its resistance? R =   V =      V The figure shows data on the dependence ofthe current through a resistor on the voltage across thatresistor. Is the resistor ohmic? What is the value of its resistance? R = ohm Use the data to predict what voltage would beneeded to produce a 2.0 A current in the resistor. V = V

Explanation / Answer

R = slope of the straight line = (40 - 10)/(20 - 5) = 2.0 I = 2.0 A, V = IR = 4.0 V

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