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Q. Using the small-signal equivalent circuit of a BJT with gm = 0.03 S, β = 75, and VA = 65 V, a load resistor RL is connected from the collector to the emitter, as shown in Figure. The transistor is biased to have a dc collector current of 6 mA.
(a) Calculate vL due to the small change vBE.
(b) Find the corresponding change iB in the base current.
Q. An antenna has beam widths of 3° and 10° in orthogonal planes and has a radiation ef?ciency factor of 0.6. Find the maximum radiation inten- sity if 1 kW is applied to the anten
Guarding Against Losses in Service Cables and Connections The service cables to consumer premises are often a source of loss that can be reduced given below. The length of ser
Since dc motors of various types are used extensively in control systems, it is essential for analytical purposes that we establish a mathematical model for the dc motor. Let us co
Use basic circuit theory to convert the "T" circuit below into the equivalent "π". Hint: Remember to disconnect the voltage source and the load.
What is the function of the time-base generator as used in an oscilloscope
function of bomb calorimeter
ammeter, voltmeter, wattmeter
Design a logic circuit when to provide an output when any two or three of four switches are closed.
Determine the equivalent resistance of circuit: Determine the equivalent resistance of network across the source terminals and find the current drawn from the source.
Analysis Flow Similar to most subjects, the analysis of semiconductor devices is also performed by starting from simpler problems and regularly progressing to more complex one
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