Physics, 01.04.2020 02:56 Scotdouglas346

Charlie writes the steps shown to describe the use of a
transistor in a closed circuit with flowing current.

Using a Transistor to Amplify a Signal
1. Current (14) flows from the base to the emitter.
2. An input causes a small increase in voltage across the
base and emitter.
3.7, increases a small amount.
4. Current (2) flowing from the emitter to the collector
changes a large amount.

Which change corrects the error in his steps?

A. Change the title to "Using a Transistor as a Switch."
B. Change step 1 to say that no current flows in the
transistor at the start.
C. Reverse the sizes of the changes in current in steps 3
and 4.
D. Reverse the direction of current in step 4.

Answers: 1

Show answers

Another question on Physics

Physics, 22.06.2019 11:50

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?

Answers: 2

Answer

Physics, 22.06.2019 12:30

Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?

Answers: 1

Answer

Physics, 22.06.2019 23:30

An electric power distributor charges residential customers $0.10 per kilowatt-hour (kwh). the company advertises that "green power" is available in 150 kwh blocks for an additional $4 per month. (green power is generated from solar, wind power, and methane sources.) if a certain customer uses an average of 391 kwh per month and commits to one monthly 150 kwh block of green power, what is her annual power bill

Answers: 1

Answer

Physics, 22.06.2019 23:40

Certain bacteria (such as aquaspirillum magnetotacticum) tend to swim toward the earth’s geographic north pole because they contain tiny particles, called magnetosomes, that are sensitive to a magnetic field. if a transmission line carrying 100 a is laid underwater, at what range of distances would the magnetic field from this line be great enough to interfere with the migration of these bacteria? (assume that a field less than 5% of the earth’s field would have little effect on the bacteria. take the earth’s field to be 5.0 * 10-5 t, and ignore the effects of the seawater.)

Answers: 1

Answer

You know the right answer?

Charlie writes the steps shown to describe the use of a
transistor in a closed circuit with flo...

Questions