Question

1. for sensitive electronic equipment where small incremental adjustments are required, it might be desirable to utilize a multi-turn variable resistor if a standard is too coarse.

true

false

Explanation:

Analyze the role of variable resistors

Using the Variable Resistors knowledge point
Variable resistors (potentiometers) adjust resistance in a circuit. Standard single-turn potentiometers rotate approximately \(270^\circ\) to \(300^\circ\), which can make fine adjustments difficult.

Evaluate multi-turn variable resistors

Using the Variable Resistors knowledge point
Multi-turn variable resistors require multiple complete rotations (typically 5, 10, or more) to span their full resistance range. This design significantly increases adjustment resolution, allowing for highly precise, small incremental changes.

Determine statement truth value

Using the Variable Resistors knowledge point
Because standard single-turn adjustments are often too coarse for sensitive equipment, utilizing a multi-turn variable resistor is highly desirable to achieve fine control. Thus, the statement is true.

Answer:

• True (Correct answer)
• False