A strain gauge with gauge factor 7 has a resistance of 240 when unstrained. If the strain gauge undergoes a change in length from 0.67 mm to 0.789 mm, find the new resistance.

Assuming that the diodes are ideal, find the values of I and V for the circuit.

Answers can be found at www.pearsonhighered.com/floyd. 1. The JFET is (a) a unipolar device (b) a voltage-controlled device (c) a current-controlled device (d) answers (a) and (c) (e) answers (a) and (b) 2. The channel of a JFET is between the (a) gate and drain (b) drain and source (c) gate and source (d) input and output 3. A JFET always operates with (a) the gate-to-source pn junction reverse-biased (b) the gate-to-source pn junction forward-biased (c) the drain connected to ground (d) the gate connected to the source 4. For VGs = 0 V, the drain current becomes constant when Vps exceeds (a) cutoff (b) VDD (c) Vp (d) 0 V 5. The constant-current region of a FET lies between (a) cutoff and saturation (b) cutoff and pinch-off (c) 0 and Ipss (d) pinch-off and breakdown 6. Ipss is (a) the drain current with the source shorted (b) the drain current at cutoff (c) the maximum possible drain current (d) the midpoint drain current 7. Drain current in the constant-current region increases when…

When the switch is closed in above circuit, what is the voltage on the inductor, resistor R1 and R2 after 2.2us , assuming 0 V  on the inductor to start?