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Figure P10.45 shows a diode-connected transistor with the bias circuit omitted. Utilizing the BJT high-frequency, hybrid-π model with rx = 0 and ro =∞, derive an expression for Zi(s) as a function of re and Cπ . Find the frequency at which the impedance has a phase angle of 45° for the case in which the BJT has fT= 400 MHz and the bias current is relatively high. What is the frequency when the bias current is reduced so that Cπ ? Cμ? Assume α = 1.
Explain the difference between reliability and durability and how they can be specified in a product development programme.
A motorist traveling at a speed of 108 km/h suddenly applies the brakes and comes to a stop after skidding 75 m. Determine
Draw shear-force and moment diagram of the steel frame and design the member and calculate the structural design calculation and detailing in the form of a drawing
An inclined plane has a mechanical advantage of 10. If an effort of 20 pounds is needed to push a wheelchair up the inclined plane. What is the weight of the wheelchair?
Design a binary divider which divides a 7-bit dividend by a 2-bit divisor to give a 5-bit quotient. The system has an input St that starts the division process. Draw a block diagram for the subtracter-comparator. You may use fulil adders or full..
What would their fractographic appearances be, at 2× and 2000× magnification? How can these magnifications be obtained?
Write a VHDL module for a 4-bit up-down counter. If En = o, the counter will hold its state.If En = 1, the counter will count up if U = 1 or down if U = o. The counter should also have an asynchronous active-low clear signal ClrN.
Radio Frequency Identification Tags (RFIDs) are being used in ever greater numbers for an increasing diverse number of applications, from libraries to retail shops to Oyster cards.
A uniformly loaded square crate is released from rest with its corner D directly above A; it rotates about A until its corner B strikes the floor, and then rotates about B. The floor is sufficiently rough to prevent slipping and the impact at B is..
Create a WebQuest on a topic in telecommunication or networking that will grab your classmate's interest and motivate them to learn about the WebQuest topic
Develop three scenario overviews relating to global population growth -- one disastrous, one hopeful, and one complete wildcard (the reading will explain about wildcards).
Conduct an Internet search to answer the question: How did Presidential addresses and Supreme Court rulings begin to change the lives of the American people beginning in the mid-20th century?
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