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Electric Circuits
A Wheatstone bridge is used to measure an unknown resistance. If the Ratio setting is 10 to 1 and the reading on the dials is 345, what is the value of the unknown resistance?
Electric Circuits
Determine the S/N(input) (dB) for the following system, where:
Sinput = 100 pW
Ninput = 20 fW
PdB = 35 dB
Nd = -68 dBm
Sinput = 100 pW
Ninput = 20 fW
PdB = 35 dB
Nd = -68 dBm
Electric Circuits
A parallel plate air filled capacitor having area 34cm^2 and plate spacing .96 mm is charged to a potential difference of 760v. Find a) capacitance in picofarads b) magnitude of the charge in nanocolumbs c) stored energy in microjoules d) the electric field n/c between the plates e) the energy density between the plates
Electric Circuits
What resistance must be placed in parallel with a 151 Ω resistor to make the equivalent resistance 128 Ω?
Electric Circuits
an ac voltmeter with large impedance is connected in turn across the inductor, the capacitor, and the resistor in a series circuit having an alternating emf of 100V, it gives the same reading in volts in each case. What is this reading?
Electric Circuits
What is the magnitude of the electric field due to a 4.0 E 9 C charge at a point 0.020 away?
Electric Circuits
"please give me a diagram of a circuit for digital 12hours clock with 2 relay outputs which controls by alarms.
I want to control my room's window curtains(morning - open and evening - close).
PLEASE HELP ME!"
I want to control my room's window curtains(morning - open and evening - close).
PLEASE HELP ME!"
Electric Circuits
a truck travelled at 25 meters per second puts its break on for 4 seconds.this produces acceleration of 2 meters per second square.what does the truck's velocity drop to?
Electric Circuits
Please, I'm stuck in this exercise, we are asked to determine the Thevenin equivalent generator to mount between points A and B, the problem is with the Eth:
This is the assembly diagram:
http://s8.postimage.org/pwmfe1l2d/sdfgh.jpg
This is the assembly diagram:
http://s8.postimage.org/pwmfe1l2d/sdfgh.jpg
Electric Circuits
Calculate the electric power which must be supplied to the filament of of a light bulb operating at 3000K. The total surface area of the filament is 810−6m2 and its emissivity is 0.92.
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#331389 on Nov 2022
#331389 on Nov 2022