Answer the following statement(s) true (T) or false (F)

1. The programmable parameters of a digital controller must be set when installing a new electronic drive.
2. A simple vector drive is fairly accurate but does not use much feedback from the motor, whereas a PWM drive has tighter control and more feedback from the motor operations.
3. The capacitive proximity sensor has an advantage over the inductive sensor in that it can detect both nonmetallic and metallic objects.
4. The least complicated photoelectric sensors are called direct-scan sensors. Although they are harder to keep in alignment, they are used extensively.
5. The International Electrotechnical Commission (IEC), headquartered in Geneva, Switzerland, is a counterpart to the National Electrical Manufacturers Association (NEMA).


1. TRUE
2. FALSE
3. TRUE
4. TRUE
5. TRUE

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For the circuit of Figure P3.22 determine:


a. The most efficient way to solve for the voltage\ across R3. Prove your case.
b. The voltage across R3.

VS1 = VS2 = 110 V
R1 = 500 m? R2 = 167 m?
R3 = 700 m?
R4 = 200 m? R5 = 333 m?

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