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Sagot :
To determine what the third color band on a resistor represents, let's consider the options provided:
Option A: The first two digits of the resistor value.
- This is not correct because the first two color bands on a resistor represent the first two significant digits of the resistor value.
Option B: The multiplier for the resistor value.
- This is the correct option. The third color band on a resistor is used to determine the multiplier for the resistor value.
Option C: The resistor tolerance.
- This is not correct because the resistor tolerance is usually indicated by the fourth color band on a standard 4-band resistor.
Option D: The color frequencies of the waveform.
- This option is unrelated to the purpose of color bands on a resistor. Resistor color bands are used to denote numerical values and tolerances, not the color frequencies of waveforms.
Therefore, when the third color band is silver, it represents:
Option B. The multiplier for the resistor value.
Option A: The first two digits of the resistor value.
- This is not correct because the first two color bands on a resistor represent the first two significant digits of the resistor value.
Option B: The multiplier for the resistor value.
- This is the correct option. The third color band on a resistor is used to determine the multiplier for the resistor value.
Option C: The resistor tolerance.
- This is not correct because the resistor tolerance is usually indicated by the fourth color band on a standard 4-band resistor.
Option D: The color frequencies of the waveform.
- This option is unrelated to the purpose of color bands on a resistor. Resistor color bands are used to denote numerical values and tolerances, not the color frequencies of waveforms.
Therefore, when the third color band is silver, it represents:
Option B. The multiplier for the resistor value.
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