Which one of the following bulbs has the least resistance?
Correct answer: C. 300W
- A. 100W
- B. 200W
- C. 300W
- D. 60W
Explanation
From the given information in the question, Power = VI. That is, voltage times the current. When there is more current through the bulb, it means that it has a low resistance. In this case, only when more current flows through the bulb will the power of the bulb will increase. Therefore, more the power, lesser the resistance. Here we do not consider whether they are serially or parallely connected.Hence, the 300 W bulb has the lowest resistance.
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About Current Electricity
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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