Alloys usually have much (lower/higher) temperature coefficients of resistance than pure metals.

Explanation

To solve the question regarding the temperature coefficients of resistance in alloys compared to pure metals, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Temperature Coefficient of Resistance**:
- The temperature coefficient of resistance (α) is a measure of how much the resistance of a material changes with temperature. It is defined as the fractional change in resistance per degree change in temperature.

2. **Consider the Behavior of Pure Metals**:
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