LMS Substation 1st Year, Level II Practice Test

The correct answer of 200,000 ohms can be expressed in kilohms, which is a unit of resistance equal to 1,000 ohms. To convert ohms to kilohms, you simply divide the resistance in ohms by 1,000.

In this case, when you take 200,000 ohms and divide it by 1,000, you get 200 kilohms (200 kΩ). This signifies that 200,000 ohms represents a resistance that is quite significant, and using kilohms simplifies the number for easier communication and understanding in electrical contexts.

It's important to recognize that while ohms, kilohms, and megohms are all units of resistance, they represent different scales. 200 Ω is much less than 200,000 ohms, and 2.0 MΩ represents a much larger value (2 million ohms), which exceeds 200,000 ohms significantly. Similarly, 20 kΩ is equivalent to 20,000 ohms, again a lesser value than 200,000 ohms. Therefore, conveying 200,000 ohms as 200 kΩ accurately reflects its magnitude in the proper unit form.