Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

how do you expect the time-dependence of the output signal to be related to that

ID: 1912005 • Letter: H

Question

how do you expect the time-dependence of the output signal to be related to that of the input? how do you expect the time-dependence of the output signal to be related to that of the input? Be aware that because of the alternating current principles the magnitude of the current in the circuit (hence the magnetic field) depends on the frequency. For better results you may want to make some small adjustments in the output signal amplitude to keep the current amplitude constant. In Graphical Analysis make the graphs Vemf. meas. (V) vs. frequency f (Hz) and Vemf. meas. (V) vs. Vr,m (input amplitude). Are the graphs linear? What does that mean?

Explanation / Answer

In electronics, a voltage divider (also known as a potential divider) is a linear circuit that produces an output voltage (Vout) that is a fraction of its input voltage (Vin). Voltage division refers to the partitioning of a voltage among the components of the divider. An example of a voltage divider consists of two resistors in series or a potentiometer. It is commonly used to create a reference voltage, or to get a low voltage signal proportional to the voltage to be measured, and may also be used as a signal attenuator at low frequencies. For direct current and relatively low frequencies, a voltage divider may be sufficiently accurate if made only of resistors; where frequency response over a wide range is required, (such as in an oscilloscope probe), the voltage divider may have capacitive elements added to allow compensation for load capacitance. In electric power transmission, a capacitive voltage divider is used for measurement of high voltage.