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Bell Work: Parallel Circuits

Explore the fundamentals of parallel circuits: in a parallel circuit, the voltage drop is the same across each branch, while the current splits at junctions. The total current through individual resistors adds up. As you add more resistors in parallel, the total resistance decreases; but in series, it increases. Remember, you have until Wednesday, Feb 22nd to submit any missing work from the past six weeks, including the Ohm’s Law Lab. Follow the lab instructions for setting up your parallel circuit and practice problems while waiting for assistance.

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Bell Work: Parallel Circuits

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  1. Bell Work: Parallel Circuits In a parallel circuit the _____ drop is the same throught each branch. At each junction, the _______ splits up. The _______ through individual resistors add up to the total. As you add more resistors in parallel, the resistance goes ( up / down ). As you add more resistors in series, the resistance goes ( up / down ).

  2. Today: • Many of you have not turned in Ohm’s Law Lab. • You have until Wednesday, Feb 22nd to complete any missing work from the first 6 weeks or to make other arrangements with me. • Parallel Circuit lab: • Get your voltage like usual. • Let me check the current setup before plugging in your circuit – we are using a different setting (10A) which requires you to move one of the plugs to the 10A socket. • Work on the parallel practice problems while waiting for me to circulate.

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