Which of the following is equivalent to 2.1KW?

To understand why 2.1 kW is equivalent to 2,100 Watts, it is important to recall the relationship between kilowatts (kW) and watts (W). The prefix "kilo-" in the metric system indicates a factor of one thousand. Therefore, 1 kilowatt is equal to 1,000 watts.

To convert kilowatts to watts, you multiply the number of kilowatts by 1,000. In this case, 2.1 kW can be calculated as follows:

2.1 kW × 1,000 = 2,100 W.

This confirms that 2.1 kW is indeed equal to 2,100 watts, making the first choice the correct one.

The other options present quantities that are either too high or too low when converted from kilowatts to watts. For instance, 210 watts is significantly lower than 2.1 kW, and 21,000 watts is ten times greater than the correct conversion. Similarly, 2,010 watts is still less than the correct equivalent. Thus, the only accurate representation of 2.1 kW is 2,100 watts.