When measuring load resistance, the ohmmeter is connected ________.

The correct choice indicates that the ohmmeter should be connected across the terminals of the load to accurately measure the load resistance. This method allows the ohmmeter to apply a small voltage to the resistive load and measure the resulting current, which can then be used to calculate the resistance using Ohm's Law (R = V/I). Measuring across the terminals ensures that the entire resistance of the load is accounted for, without interference from any other components in the circuit.

When an ohmmeter is connected in this manner, it provides a direct measurement of the resistance value, thereby ensuring accuracy and clarity in the readings obtained.

Connecting the ohmmeter in specific other configurations would not yield an accurate resistance measurement. For instance, connecting it in series with the load would place the ohmmeter in the flow of current and could potentially damage the meter, as it is not designed to handle the operational voltage or current. Parallel connection with a source can lead to inaccurate readings due to the influence of the source on the measurement. Similarly, taking a measurement from one load terminal to ground may only provide partial information and does not accurately reflect the total load resistance. Therefore, measuring across the terminals of the load is the proper and effective method for evaluating load resistance