Carbon Has a Negative Temperature Coefficient of Resistance of -0 $\degree$

question 27

Multiple Choice

Carbon has a negative temperature coefficient of resistance of -0.5 x 10^-3 ( $\degree$ C) ^-1.What temperature increase would result in a resistance decrease of 1% for a carbon resistor?

• A)2 \(\degree\)C
• B)20 \(\degree\)C
• C)50 \(\degree\)C
• D)100 \(\degree\)C

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Definitions:

Energize Output

The process of activating an output device, such as a motor or relay, based on the logic conditions met in a control program.

XIC Instruction

In Ladder Logic programming for PLCs, an instruction representing "Examine If Closed"; used to check if a contact is on.

Physical Input

An actual, tangible input (such as a button press or sensor signal) received by a device or system.

Input Voltage

The electrical voltage supplied to the inputs of a device or circuit.