There are three equal resistances. How many different combination of these resistances are possible:
Correct answer: D. Four
- A. Six
- B. Three
- C. One
- D. Four
Explanation
The three equal resistances can be combined in four different ways: all in series, all in parallel, two in series with one in parallel, and two in parallel with one in series. These combinations result in four distinct resistance values.
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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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