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3 cards from this section. Quick, good the night before a test.
What is the formula to calculate electric current?
Think about how charge changes over time.
Define voltage.
Consider what drives the current through a circuit.
What does Ohm's Law state?
Focus on rearranging the terms correctly.
True or false: Higher resistance results in lower current, when voltage is constant.
Consider how V and R interact in the evidence.
A circuit has a voltage of 24V and consists of four resistors in series with total resistance of 12Ω. Calculate the current flowing in the circuit.
Review how series resistance works to solve for total current.
In a copper wire, the average drift speed of conduction electrons is calculated to be 1.1mm/s. If there are 8.5 x 10^28 free electrons per cubic meter, find the current in a cross-sectional area of 1.0 x 10^-6 m².
Break down the components and substitute into the current density formula.
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