In circuit notation, which symbol represents resistance?

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Study for the Con Edison Basic Electric Test. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

In circuit notation, which symbol represents resistance?

Explanation:
In circuit notation, resistance is represented by the symbol R. This is the value that links voltage and current in Ohm’s law, V = I R, where V is voltage, I is current, and R is the resistance. I stands for current, V for voltage, and E is often used for electromotive force in power sources; neither of those denotes resistance. When you label a resistor or its value, the quantity to denote resistance is shown as R (measured in ohms).

In circuit notation, resistance is represented by the symbol R. This is the value that links voltage and current in Ohm’s law, V = I R, where V is voltage, I is current, and R is the resistance. I stands for current, V for voltage, and E is often used for electromotive force in power sources; neither of those denotes resistance. When you label a resistor or its value, the quantity to denote resistance is shown as R (measured in ohms).

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