Describe the difference between a cylindrical and prismatic battery cell.
What will be an ideal response?
In a cylindrical cell, the electrodes are rolled together and fit into a metal cylinder. A separator soaked in the electrolyte is placed between the plates. This cell design is quite common. The major drawback of this design is that battery backs tend to be large because there is much wasted space when placing several cylinders into an assembly. A prismatic cell has flat electrodes placed into box-like structure with separators placed between them. This is the common design of conventional automotive lead-acid batteries. Other types of batteries are also constructed this way. Prismatic cells tend to be more expensive to produce than cylindrical cells but require less space when several cells are connected together.
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The second-order AR filter has feedback coefficients a1=0.9 and a2=0.5 (b0 = 1). When xi = sin(2?i/8), the value of y2 = ________(x.xx).
Analysis: x0=sin(0)=0, x1=sin(?/4)=0.707, x2=sin(?/2)=1. yi = 0.9yi-1 +0.5yi-2 + xi. With zero initial conditions: y0=x0 =1 y1=0.9y0+x1=0.9(1) + 0.707 = 1.607 y2=0.9y1+0.5y0+x2 = 0.9(1.607) + 0.5(1)+ 1 = 2.9463 = 2.95
What rules apply when you are using parallel feeders?
What will be an ideal response?
In this illustration, the input force is 50 pounds. What is the pressure and output force?
A) 50 psi and 100 lbs
B) 50 psi and 50 lbs
C) 51 psi and 51 lbs
D) 100 psi and 100 lbs
The strain energy of a dislocation normally varies as the square of its Burgers vector. One may see this by examining Eqs. 4.19 and 4.20. This relationship between the dislocation strain energy and the Burgers vector is known as Frank’s rule. Thus, if b= a{hkl}, where a is a numerical factor, then:
