Most materials that are good electrical conductors:
A) Are poor thermal conductors.
B) Also tend to make good thermal conductors.
C) Will transfer heat by convection, but not by conduction.
D) Will transfer heat by radiation, but not by conduction.
B
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In 13.16, coordinates of each node are represented by (x,y) digits, with one corner being (0,0) and other three corners being (0,7), (7,0) and (7,7). Assuming that two messages are to be sent at the same time, one from node (0,0) to (7,7) and the second from node (0,7) to (7,0). Identify the transmission sequence of these two messages so that they do not interfere with each other and follow the shortest path.
Answer the following statement(s) true (T) or false (F)
1. An induction motor becomes an induction generator when driven by a prime mover such as a wind turbine. 2. Rotor speed below or above synchronous speed is called torque. 3. Reactive power is that power used by inductive and capacitive loads when current and voltage are out of phase. 4. A synchronous generator is run at synchronous speed, which means it must be driven by a prime mover at a variable RPM. 5. A transmission grid is a network of power stations, transmission circuits, and substations.
The formula for inductive reactance is _____.
a. XL = 1 ÷ 2?fL b. XL = 2 ÷ ?fL c. XL = 2? ÷ fL d. XL = 2?fL
Why is it necessary to adjust the fixed parking-brake pad during a PM cycle?
What will be an ideal response?