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Explain the properties and the application of high resistivity materials related with tunsten and carbon?
A Two resistor voltage divider consists of a 10k ohm and a 15k ohm resistor, with the 10k ohm resistor connected to the voltage source and the 15k ohm resistor connected to ground. if the output voltage is 2.5V
A stereo draws 2.4A at 120V. The audio output power is 50W. a)how much power is lost in the form of heat in the system b)what is the efficiency of the system
What is the bandwidth required so that the modulated signal contains atheist 90% of the power of the unmodulated carrier. A carrier signal c(t) = 10 cos(2pifct) is modulated using a message signal m(t) cos(20pit). The modulation is FM, with kf = 50.
A uniform surface charge density of 20 [nC/m^2] is present on the spherical surface r=.6 cm in free space. (a) Find the absolute potential Φ at P(r =1cm,θ=25,φ=50). (b) Find Vab, given points a(r=2cm,θ=30,φ=60), and b(r=3cm,θ=45,φ=90)
with karnaugh maps, find a minimal sum-of-products expressionfor each of the following logic functions. Indicate thedistinguished 1-cells in each map a) F = ΣA,B,C,D (1,4, 5, 6,11, 12,13,14,15) b) F = ΣA,B,C,D (0, 1, 2,5, 8, 9,10, 11,12)
A perfect conductor with bias voltage Vo is insulated with a wedge shaped dielectric material of angle, =450, whose relative permittivity is εr. Use electrostatic boundary conditions to determine the electric displacement, D
Referring to the circuit with switches connected to doors: Consider 3 doors, Doors A, B, and C. Design a circuit that will illuminate an LED only if both Doors A and B are closed or if Door A is closed and Door C is open.
The switch in a RC circuit is closed. If the resistance is 134462ohms, the capacitance 7.5 microF, and the applied voltage 18 volts, what is the (average) rate of change of the voltage on the capacitor, to the nearest tenth of a V/s, during the fi..
What is the minimum energy (in MeV) that is required to break a nucleus of 12C (of mass 11.99671 u) into three nuclei of 4He (of mass 4.00151 u each)
The shaft output of a three-phase 60- Hz induction motor is 80 KW. The friction and windage losses are 920 W, the stator core loss is 4300 W and the stator copper loss is 2690 W. The rotor current and rotor resistance referred to stator are respec..
a signal franging from 1khz to 100khz will be put into a davice that will need amplification that will output to speakers. A 12v battery is available as a power source, however the current out of the battery should be kept to a minimum.
Consider the stable system represented by the differential equation: dx(t)/dt + 3x(t) = u(t) Determine the phase lag for this system if the input u(t) = sin3t.
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