The Wheatstone bridge circuit shown in Fig. 4.146 is used to measure the resistance of a strain gauge. The adjustable resistor has a linear taper with a maximum value of 100 ?. If the resistance of the strain gauge is found to be 42.6 ?, what fraction of the full slider travel is the slider when the bridge is balanced?
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The diode is often called a PN junction.
Answer the following statement true (T) or false (F)
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In the accompanying figure, if angle E measures 75o, the measure of angle F is ____o.
A. 20 B. 30 C. 40 D. 80
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How much mechanical work is required to lift a 300-lb compressor 3 ft?
A) 300 lb × 3 ft = 900 ft-lb of force B) Mechanical force alone will not lift the compressor. C) 300 lb/3 ft = 100 ft-lb of force D) 300 lb of force
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Current through a diode is blocked by ________
A) forward voltage across the diode B) thermally produced electron-hole pairs C) reverse voltage across the diode D) depletion layer breakdown
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