Answer the following statement(s) true (T) or false (F)
1. The left-hand rule is used with generators, and the right-hand rule applies to motors.
2. The torque delivered by a motor is a less useful quantity than the single force pushing against the two vertical sides of the coil.
3. To differentiate between torque and work, it is customary to call the unit of torque the foot-pound and the unit of work the pound-foot.
4. A function of a commutator is to carry a current from the supply line, via the brushes, into the rotating armature.
5. A one-loop armature produces regular torque.
1. True
2. False
3. False
4. True
5. False
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In the ____-groove welds, only one of the two members is beveled.
A. J B. U C. V D. Y
Architectural scales are divided into fractions of feet.
Answer the following statement true (T) or false (F)
Recycling in ecosystems is mainly carried out by:
A. saprophytes and detritivores. B. mycorrhiza. C. large animals feeding on small animals. D. small animals feeding on plants.
In the circuit shown in Figure P4.7, assume R = 2? and C = 0.1 F. Also, let:
Find the energy stored in the inductor for all time.
