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4 cards from this section. Quick, good the night before a test.
What is Ohm's Law?
Think about the relationship between current and voltage.
What unit is used for measuring resistance?
What symbol represents resistance?
What is the formula for Ohm's Law?
It relates current, voltage, and resistance.
True or False: Resistance decreases with increasing temperature in most materials.
Consider how temperature affects atoms' movement.
A wire of 4 m length has a cross-sectional area of 0.5 mm² and a resistivity of 1.68 × 10⁻⁸ Ω·m. Calculate the resistance and discuss its implications.
Use the formula for resistance based on resistivity.
If an electric circuit has a voltage of 12V and a total resistance of 3Ω, what is the current flowing through the circuit?
Apply Ohm's Law straightforwardly.
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