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A hollow shaft of outer radius and inner radius rotates inside a sleeve of inner radius and outer radius Frictional heat is generated at the interface at a flux At the inner shaft surface heat is added at a flux The sleeve is cooled by convection with a heat transfer coefficient h.
The ambient temperature is Determine the steady state one-dimensional temperature distribution in the sleeve.
What is the principle behind CRT(CATHODE RAY OSCILLOSCOPE), and How this method is simplified in LCD and LED. Is the same CRT principle used in LCD and LED Televisions. If no what is the principle used in LCD and LED Tvs.
the current supplied by a battery slowly decreases as the battery runs down. suppose that the current as a function
if 16mm copper cables were replaced with aluminium cables capable of carrying the same current what is the resistance
The temperature of steam at the inlets of both turbines is 500°C, and the enthalpy of steam is 3185 kJ/kg at the exit of the high-pressure turbine, and 2247 kJ/kg at the exit of the low-pressure turbine. Disregarding the pump work, determine the w..
a. Describe in your words why I_G is effectively 0A for a JFET transistor b. Why is the input impedance to a JFET so high c. Why is the terminology field effect appropriate for this important three- terminal device
Estimate the straight voltage gain for the amplifier of Example 3.7
Resistance=0.09ohm/km Inductance=1.4mH/km Capacitance=8.8x10-3 uF/km. Calculate the sending-end power if the receiving-end voltage is 132kV and the receiving-end power is S2=100+j60 MVA. Assume a pi-equivalent circuit.
Find the minimal sum and distinguished 1-cell using Karnaugh Maps for the following functions, also state essential prime implicants (if any) and which are non-essential prime implicants (if any) a. F = fA,B,C,D (2,,4,6,7,12,13,14,15)
A half-wave rectifier is needed to supply 15-V dc to a load that draws an average current of 250 mA. The peak-to-peak ripple is required to be 0.2 V or less. What is the minimum value allowed for the smoothing capacitance? If a full-wave rectifier..
How to test Electrical and Electronics Components and Devices with Multimeter ? (with easy expalantion )
A 10-stages Cockcroft-Walton voltage multiplier is supplied by a single-phase HV transformer operating at 150 Hz with a secondary voltage of 120 kV. All capacitors of the voltage multiplier have equal capacitances of 0.05 μF. If the load current i..
A description of the operation with simple calculations based on an appropriate transistor model (include the emitter resistance concept).
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