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2 cards from this section. Quick, good the night before a test.
Define what a parallel circuit is.
Think about how devices are connected in your home.
What happens to the total current in a parallel circuit?
Remember the formula for total current.
What is the total current in a parallel circuit?
Remember how each branch works independently.
True or False: All resistors in parallel have the same current flowing through them.
Think about how Ohm's law applies to different resistors.
You have three resistors in parallel: 15 Ω, 30 Ω, and 45 Ω. Calculate the equivalent resistance and determine how much current is drawn from a 60 V source.
Start by finding the reciprocal of each resistance and then simplify.
A circuit contains three resistors connected in parallel, and you know the equivalent resistance is 12 Ω. If one of the resistors is 36 Ω, find the equivalent resistance of the other two resistors.
Use algebraic manipulation of the formula.
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