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Pocket ionization chambers are built in the form of an electrical capacitor. You know that capacitance is equal to a change in charge over a change in voltage, as C, where the capacitance, C, is in Farads (F), the voltage, V, is in volts (V) and the charge, Q, is in coulombs (C).
You have a chamber that has a sensitive cylindrical volume radius of 0.635 cm and length 6.35 cm. The standard density of the air in the chamber is 0.001293 g/cm^3. The chamber is calibrated such that its quartz fibre has full deflection when there is 50 uC per kg of air. The capacitance of the chamber is 10 pF.
a) If it takes 200 Volts to charge the chamber, what is the voltage in the chamber at full scale deflection?
b) What exposure (in Roentgen) does full scale deflection correspond to? What absorbed dose in air, and tissue, does it correspond to?
Solve these equations to find the expressions for the phasors corresponding to the voltages across the resistor and the capacitor.
Design a 2-bit count-down counter. This is a sequential circuit with 2 Flip-Flops and 1 input x.When x=0, the state of theFlip-Flops does not change.When x=1,the state sequence is11,10,01,00,11 and repeat.
A crystal with a simple cubic lattice and a monoatomic basis has an atomic radius of 2.5 angstrom and an atomic weight of 5.42. Calculate its density assuming that the atoms touch each other.
That is, m = 36 kg/h, with all other conditions the same. The thermo physical properties of the hot fluid are p = 1079 kg/m3, cp = 2637 J/kg · K, µ = 0.0034 N · s/m2, and k = 0.261 W/m · K.
A wire carrying a current is shaped in the form of a circular loop of radius 4.0 mm. If the magnetic field strength at its center is 1.1 mT with no external magnetic fields contributing to it, what is the magnitude of the current that flows throug..
In order to measure the heart rate of the patient, you acquire 8000 datapoints at the Nyquist sampling interval. What is the spectral resolution of the frequency spectrum resulting from these data?
A measurement of the rate at which a capacitor will store a charge on its plates is called The opposition to the flow of current which results in the continual interchange of energy between source and magnetic field is known as
The frequency of a clocking signal is 10MHZ and it is used to sample serial data stream. If the data must be stable for 15ns before the leading clock edge and for 10ns after the leading clock edge, how much time is available to change the data bet..
Write a program to determine how many from your data set called MYDATA, which is a set of unsigned single-byte numbers, are odd numbers. Save the result in TOTODD at address 0x10 in the data memory.
The pressures of argon at the two faces are 5000 kPa and 1500 kPa, which are maintained constant. Assuming conditions of steady state, what is the permeability coefficient at 325 K?
Draw the winding on the stator and the winding on the rotor of a three-phase 6-pole synchronous generator which has salient poles. Assume that the stator winding is concentrated for simplicity. Show the values of the conductor angles on the stator..
Consider a coffee counter with a single server at which tired students arrive according to a Poisson process. Let the mean arrival rate be two students per ten minutes and assume the serving time is exponentially distributed with an average of 180..
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