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Circumferential aluminium fins of rectangular profile (1.5cmwide and 1mm thick) are fitted on to a 90 mm engine cylinder with a pitch of 10 mm. The height of the cylinder is 120 mm. The cylinder base temperature before and after fitting the fins are 200°C and 150°C respectively. Take ambient at 30°C and h(average) =100 W/m2K. Estimate the heat dissipated from the finned and the unfinned surface areas of cylinder body.Circumferential aluminium fins of rectangular profile (1.5cmwide and 1mm thick) are fitted on to a 90 mm engine cylinder with a pitch of 10 mm. The height of the cylinder is 120 mm. The cylinder base temperature before and after fitting the fins are 200°C and 150°C respectively. Take ambient at 30°C and h(average) =100 W/m2K. Estimate the heat dissipated from the finned and the unfinned surface areas of cylinder body.
Why radio waves are chosen for Remote & close range transmission? and how HOW TO CONSTRUCT A SIMPLE RADIO RECEIVER ?
in step index fiber the core of diameter D has a refractive n1, which is typically equal to 1.48. core is typically surrounded by the cladding of slightly lower index. Where n2=n1(1-delta). The parameter is simply called the index difference.
The specificationof the desired low pass filter are A min=23 dB, A max=5dB, P=02and S=0.6. Design a Butterworth digital filter using bilinear transformation.
An automobile battery is charged with a constant current of3.75A for5hours. The terminal voltage of the battery isv= 11 + 0.5tVfort> 0, wheretis in hours.(a) Find the energy delivered to the battery during the5hours
Given the following function: F(W,X,Y,Z) = fm(2,3,5,7,12,13). a. Implement the function using an 8-input multiplexer. b. Implement the function using a 4-input multiplexer.
If an npn transistor is operating with the base transmitter junction forward biased and the base collector junction reverse biased. Given that the transistor has Ic=10mA and Ie=10.5 mA, determine the values of Ib,alpha and beta.
A 20-cm length of wire moves at 15m/s in a constant flux density of 0.4T. The wire, direction of motion, and direction of the flux are mutually perpendicular. Determine the voltage induced in the wire segment.
An AB latch operates as follows: If A = 0 and B = 0, the latch state is Q = 0; if either A = 1 or B = 1 (but not both), the latch output does not change; and when both A = 1 and B = 1, the latch state is Q = 1. Construct the state table and derive ..
What assembly language instruction sequence would be used to configure an internal CPU register to access an array, named TABLE, that starts at memory location $1000. Write the assembly language instructions below a programmer could use to copy.
Consider an Internet video conferencing application. Assume that the compressed video streams are packetized, and that a packet is either lost (due to over long delay or mis-delivery or detected bit errors within a packet) or received intact.
AN SSB signal is generated by modulating a 5 MHz carrier with a 400 Hz sine tone. At the receiver, carrier is reinserted during demodulation, but its frequency is 5.00015 MHz rather than exactly 5 MHz. How does this affect the recovered signal
A 1.00kg block slides with a speed of 0.880m/son a frictionless horizontal surface until it encounters a spring with a force constant of 450N/m. The block comes to rest after compressing the spring 4.15 cm.
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