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Calculate the total resistance of a circuit with a 300 ohm resistor and 250 ohm resistor in parallel with one another.

Remember that to calculate resistances in parallel, the formula we use is:

1/R= 1/R+ 1/R2 etc.

So that gives us:

1/R= 1/300 + 1/250 = 0.0073

To find the total resistance we just take the reciprocal of this:

Rt = 1/0.0073 = 136.4 Ohms

Alok K. IB Design & Technology tutor, GCSE Design & Technology tutor,...

8 months ago

Answered by Alok, a GCSE Design & Technology tutor with MyTutor

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Alok K.

Currently unavailable: until 23/05/2016

Degree: Engineering (Masters) - Durham University

Subjects offered: Design & Technology, Physics+ 1 more

Design & Technology
Physics
Maths

“About MeHi there! I'm Alok and I'm an Engineering student from Durham! Engineering and all things are associated are my absolute passion and hopefully I'll be able to share that passion with you guys.I've tutored both Maths and Phy...”

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