Multiple Choice
In the context of resistors and Ohm's law, what is the SI unit of electrical resistance?
27. Resistors & DC Circuits
Resistors and Ohm's Law
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In a DC circuit, what can an excessive voltage drop measured across a component most likely indicate?
A
The component has zero resistance, creating a perfect short circuit
B
The power supply voltage is increasing automatically to compensate for load
C
The current is necessarily decreasing to because voltage drop is always bad
D
The component has an abnormally high resistance (for example, due to a loose connection or corrosion)
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