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2 cards from this section. Quick, good the night before a test.
What is the unit of resistance?
It's a term related to electric circuits.
State the formula for calculating resistance.
It involves voltage and current.
What is the formula for resistance?
It involves voltage and current.
True or False: Increasing temperature increases the resistance of metals.
Think about how heat affects materials.
A cylindrical wire of length 2 m and a radius of 0.5 mm has a resistivity of 1.68 × 10^-8 Ω·m. Calculate its resistance.
Use the resistivity formula involving length and cross-sectional area.
If three resistors with values 4Ω, 6Ω, and 12Ω are connected in series, what is the total resistance?
For series, just add the resistances together.
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