Questions: If an additional load is connected to a control circuit, the total circuit resistance will a. Increase c. Remain the same b. Decrease d. Respond the same as the total circuit current.

When an additional load is connected to a control circuit, how does it affect the total circuit resistance?

Understanding parallel and series connections

When we add an additional load to a circuit, we need to consider how it's connected. In control circuits, loads are typically connected in parallel with existing loads.

Analysis of parallel resistance

When resistors (or loads) are connected in parallel, the total resistance is calculated using the formula: \(\frac{1}{R_{total}} = \frac{1}{R_1} + \frac{1}{R_2} + ... + \frac{1}{R_n}\)

This means that adding another resistance in parallel will always make the denominator larger, which makes the total resistance smaller.

Conclusion

Since adding an additional load to a control circuit means adding another resistance in parallel, the total circuit resistance will decrease.

\(\boxed{\text{The answer is b. Decrease}}\)

\(\boxed{\text{The answer is b. Decrease}}\)