Equivalent resistance 2
Electricity and Magnetism
Level
1
What will be the equivalent resistance between
and
in the above diagram?
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1 solution
Since the required current flows from A to B , no current flows through the bottom-left and bottom-right 1 0 - Ω resistors, which are therefore not involved in the calculations.
Hence, the equivalent resistance,
R e q = 1 0 + 1 0 / / ( 1 0 + 1 0 + 1 0 ) + 1 0
= 1 0 + 1 0 + 3 0 1 0 × 3 0 + 1 0 = 1 0 + 0 . 7 5 + 1 0 = 2 7 . 5 Ω .