A circuit diagram shows that the circuit divides into separate branches and there are also series loads. This is a(n) _____.
a. series circuit
b. parallel circuit
c. series-series circuit
d. series-parallel circuit
b. parallel circuit
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Johnson's veto of the Civil Rights Bill of 1866 prompted Congress to seek passage of
A. the Thirteenth Amendment. B. an extension of the Freedmen's Bureau. C. an act to overturn the Black Codes. D. the Fourteenth Amendment. E. articles of impeachment against Johnson.
Flare nut wrenches are used to ____.
A. tighten or loosen nuts on copper tubing B. open or close refrigerant service valves C. tighten nuts that cannot be reached with other wrenches D. remove hex head screws from refrigerator cabinets
Coloring materials are added to many companion animal foods, especially those of dogs and cats, to make them appear more like meat to cats and dogs
A. True B. False
Figure P2.79 shows an aluminum cantilevered beam loaded by the force F. Strain gauges R1, R2, R3, and R4 are attached to the beam as shown in Figure P2.79 and connected into the circuit shown. The force causes a tension stress on the top of the beam that causes the length (and therefore the resistance) of R1 and R4 to increase and a compression stress on the bottom of the beam that causes the length (and therefore the resistance) of R2 and R3 to decrease. The result is a voltage of 50 mV at node B with respect to node A. Determine the force if
Find:
The force applied on the beam.
Assumptions:
Gage Factor for Strain gauge is 2