Refer to the accompanying figure. Briefly explain the mechanism for keeping the circuit intact after the start button is released.
What will be an ideal response?
After the start button is released, the spring of the pushbutton opens contacts 2–3. However, coil M remains energized and holds contacts M closed to maintain a holding circuit around the normally open contacts 2–3 of the start button.
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Explain concentricity.
What will be an ideal response?
What is the minimum amount of dissolved oxygen needed for good health, growth and
reproduction of fish? A. 16 ppm B. 12 ppm C. 8 ppm D. 4 ppm.
Typical secondary coil resistance specifications usually range from ________ ohms
A) 6,000-30,000 B) 1-3 C) 100-450 D) 500-1500
To establish a reference voltage of 10.2 V off a 15 V supply, a 2.2 k? is connected in series with a
A) 5.1 k? resistor B) 3.3 k? resistor C) 4.7 k? resistor D) 8.6 k? resistor