What are free electrons?
What will be an ideal response?
Free electrons are electrons in the outer orbits of materials such as metals that can be easily knocked out of their orbits.
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Discuss the three primary goals of the disaster recovery plan.
What will be an ideal response?
Assume that for a given consumer, the marginal utility of cheap food is 100 and the price of cheap food is $40. Also, assume that the marginal utility of environmental quality is 200 and the price of environmental quality is $100. This consumer:
A) Should buy more environmental quality. B) Is in equilibrium. C) Should buy more cheap food. D) Can't tell; insufficient information given to answer this question.
Who has developed strict guidelines for testing genetically altered organisms?
A) U.S. Department of Commerce B) U.S. Department of Agriculture C) U.S. Armed Forces D) U.S. Department of Defense
The subsequent problems deal with the circuit below. Assume that when the transistor is in saturation, the collector-to-emitter drop is 0.2 V and the base-to-emitter forward bias voltage is 0.7 V. Assume that the forward bias voltage for the LED is 2 V.
If Vin=5V, what is the voltage at the collector of the transistor?
A. 5 V B. 2.2 V C. 0.2 V D. 0.7 V E. 0 V