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Electronic Circuit Analysis

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318<br />

APPENDIX<br />

Moving<br />

End<br />

Shaft for<br />

adjustment<br />

contact<br />

terminal<br />

(8) Typical construction of a resistor variabie resistor (and potentiometer)<br />

1<br />

(b) <strong>Circuit</strong> symbols for a variable resistor<br />

(c) Decade resistance box<br />

Fig. A. 5.5 Small variable resistors are used in electronic circuit construction. Large de~de<br />

, resistance boxes are employed!n electronics laboratories. "

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