Question 1.16: A voltage drop of 15 V appears across a resistor in which a ...
A voltage drop of 15 V appears across a resistor in which a current of 1 mA flows. What is the value of the resistance?
R = V / I = 15 V / 0.001 A = 15,000 Ω = 15 kΩ
Note that it is often more convenient to work in units of mA and V, which will produce an answer directly in kΩ, i.e.
R = V / I = 15 V / 1 mA = 15 kΩ
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