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find the force between a charged circular loop of radius b and uniform charge density P l and a point charge Q located on the loop axis at a distance h from the plane of the loop. What is the force when h>>b, and when h=0? Plot the force as a function of h.
A signal with Fourier transform F(jw) = 20/(4+jw) is passed through an ideal low pass filter whose cutoff frequency is 2 rad/sec (i.e., 0
In the question below only focus on the parameter or parameters that are relevant to the particular property you are being asked about in the particular question. If you need to constrain a parameter to satisfy the stated criterion.
Suppose that a 5 Mbps link is being shared by a number of users. Each user alternates between period of activity during which the user transmits at rate 1 Mbps and periods of silence, when the user does not transmit.
Gaussian random variable W is known to have P[W>4] = 1/2. Based on this information, (a) sketch its possible PDF. (b) Now also assume that Var[W] is very small. Refine your sketch in the first part taking into account this new information.
Bob enters a pizza shop and notices there are three different sizes of pizzas available. Sizes are given as the diameter of the pizza in inches. The cost of a pizza is based on the size. Bob would like to know which size of pizza
Suppose when a baseball player gets a hit, a single is twice as likely as double which is twice as likely as a triple which is twice as likely as a home run. Also, the player's batting average, i.e., the probability the player gets a hit, is .300.
an unknown semiconductor has Eg=1.1ev and Nv=Nc.it is doped with 10^15 donors,where the donor level is 0.2ev below Ec. given that Ef is 0.25ev below Ec, calculate ni and the concentration of electrons and holes in the semiconductor at 300k.
Three delta connected transformers are supplying a balanced reactive load. The primary line voltage is 480 volts and the primary line current is 20.5 amps. The load power used is 4.8kw. What is the power factor, the apparent power supplied
1. Write this as a Boolean expression in canonical minterm form 2. Rewrite the expression in canonical maxterm form 3. Write the complement of f in 'little m' notation and as a canonical minterm expression
For each one of the 3 frequency responses, H(f), in parts (a), (b), and (c) do the following: i. Obtain the system's impulse response, h(t). ii. Indicate if the system is BIBO stable or not, and state why. iii. Indicate if the system is causal or not..
An inductor and a capacitor are connected in series and connected to a variable frequency voltage source (e.g., a function generator). Explain what happens to the total circuit impedance and current as the source frequency is varied.
A 15-kVA, 8000/230-V distribution transformer has an impedance referred to the primary of 80+j300 ohm. The components of the excitation branch referred to the primary side are Rc= 350k ohm and Xm=70k ohm.
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