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1. A nonconducting sphere has radius R=2.31cm and uniformly distributed charge q = +3.50fC. Take the electric potential at the sphere's center to be Vo = 0. What is V at radial distance (a) r =1.45cm and (b) r = R.( answer is given as (a) is -0.268mV (b) -0.681mV, please show me the detail, thank you)
2. Two particles, of charges Q1 and Q2, are separated by distance d horizontally. The net electric field due to the particles is zero at x = d/4. With V = 0 at infinity, locate (in terms of d) any point on the x axis (other than at infinity) at which the electric potential due to the two particles is zero.
The voltage and current at the terminals of an ideal element are 0, for t _ (minus equal) 0s. V(t) = 100(1-e^(-300t) V, i(t) = 15e^(-400t) mA. Find the maximun power absorbed by the element by the element at t = 10ms
Consider the Go-back N scheme with window size N = 2 and assume that 2 bits are used for the sequence number field. The sender has four packets (labeled A, B, C and D) to send to the receiver. Suppose that packet C is lost the first time that the s..
The voltage and current at the terminals of the circuit element in Fig 1.5 are zero for t
The 12 Volt automobile battery in the figure has an output capacity of 270 ampere-hours (Ah) when connected to a head lamp that absorbs 65 watts of power. How many hours can the battery power the headlight
In polysilicon emitters, heavily doped polysilicon forms the contact to the emitter. The minority density does not go to zero at the polysilicon contact, but decreases to zero well inside it. This allows one to have very thin emitter contacts for ..
Determine the expression for the frequency response H(Omega) of a causal IIR LTI discrete-time system characterized by the input-output relation. where |a|
determine the position of fermi level with respect to the valence level. What type of dopant and how much additional quantity that you have to add to this crystal to move the fermi level by (an energy amount of) KT toward the valence band
Two line conductors carry currents of 1 A and 2 A respectively. The first conductor is on the x-axis, while the other is parallel to the y-axis, and passes through the point (0, 0, 1 m). Find all points on the z-axis such that Bx = -By.
Consider a particular communication system that the threshold is 1.5. If the signal energy falls below the threshold, the system is in the outage state. What is the outage probability P
Assume X is normally distributed with a mean of 5 and a standard deviation of 4. Determine the value for x that solves each of the following: (a) P(X > x) = 0.5 (b) P(X
While it's very reliable, it can only supply a maximum power of 60W. If someone tries to draw more than 60W, the output current is reduced to zero and stays there until someone presses a "reset" button on the supply.
Upon being struck by 240 nm photons, a material ejects electrons with a maximum kinetic energy of 1.67 eV. a) What is the work function of this material b) What is the largest wavelength of a photon that will eject electrons of this material
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