Physics · Current Electricity

When there's a large resistor connected, very little current can flow, so very little power is being outputted by the battery, and the resistor won't get too warm because there's less power. If you reduce the resistance, more current will flow, and the resistor will get warmer because you've increased the power.

This option is incorrect. Assuming the same voltage for all bulbs, the bulb with a higher power rating will have a lower resistance. Since the power rating of the 100-watt bulb is lower than the other options, it indicates that its resistance will be higher. Therefore, Option A is incorrect.

This option is also incorrect. Following the same reasoning as above, a higher power rating indicates a lower resistance. Therefore, the 200-watt bulb will have a lower resistance compared to the 100-watt bulb but may still have a higher resistance compared to the remaining options. Therefore, Option B is incorrect.

The correct answer is Option C: 300W.

Among the given options, the 300-watt bulb has the highest power rating. Therefore, it indicates that this bulb will have the lowest resistance compared to the other options.

This option is also incorrect. Based on the same reasoning, the 60-watt bulb will have a higher resistance compared to the bulbs with higher power ratings. Therefore, Option D is incorrect.