Four resistors are connected in a square as shown. The resistance may be measured between any two junctions. Between which two junctions is the measured resistance greatest?
Correct answer: B. Q and S
- A. P and Q
- B. Q and S
- C. R and S
- D. S and P
Explanation
Formula for total resistance in a parallel circuit will be used 1/Rt=1/R1 + 1/R2
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Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.
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