What bias conditions must be present for the normal operation of a transistor amplifier? a. the emitter-base junction must be forward biased, and the collector-base junction must be reverse biased. b. both junctions must be forward biased. c. the emitter-base junction must be reverse biased, and the collector-base junction must be forward biased. d. both junctions must be reverse biased.

Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?