It has been determined that the source of audible noise for a radio is due to the power supply voltage. How can an inductor be configured to eliminate this noise?
A) Connect the inductor in parallel with the radio.
B) An inductor will not affect the noise.
C) Connect the inductor in series with the radio power wire.
D) both B and C
C
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A 5-year plan to raise extra funds for public schools involves an “enrichment tax” that will raise $56 for every student the first year, increasing by $1 per student per year thereafter. There are 50,000 students in the district in year one, 51,000 in year 2, with increases of 1000 students per year thereafter. Calculate the future worth in year 5 of the enrichment plan over a 5-year planning period at an interest rate of 8% per year. Solve this problem using (a) tabulated factors, and (b) a spreadsheet.
What will be an ideal response?
To forward bias a silicon diode, ________
A) The anode must be connected to a resistor (300-500 ohms) and 12.0 volts, with the cathode also connected to 12.0 volts B) The voltage at the cathode must exceed the voltage at the anode by 0.3 to 0.5 volt C) The voltage at the anode must exceed the voltage at the cathode by 0.3 to 0.5 volt D) The voltage at the anode must exceed the voltage at the cathode by 0.5 to 0.7 volt
In a parallel circuit, the total line current must equal _____
a. the branch current divided by the number of resistors b. the branch current divided by the total resistance c. the sum of the branch currents d. zero
How are solid-state devices used to sense air flow?
What will be an ideal response?