Homework Statement
Unit cell of a crystal lattice is a parallelepiped spanned by the vectors u, v, w vectors have lengths of 1, 2 resp3 (le). angles between the vectors is
[u, v] = pi / 4
[u, w] = pi / 3
[v, w] = pi / 6
Determine the volume of the unit cell.
Homework Equations
How do...
Homework Statement
Homework Equations
Is 1 an ideal voltage source?
Is 2 and ideal current source?
i was solving a noninverting amplifier circuit and i was asked to find out output impedence.
and in the first circuit output voltage was independent of the load resistence => output...
Homework Statement
Analyze the ideal op-amp circuit shown in figure to find an expression for v0 in terms of vA,vB and the resistance values.
Homework Equations
if i label the voltage across R1 as V1
then vi know that v1=R1/(R1+R2) *v0
but i need one more expression for v1.
i tried...
Homework Statement
http://img16.imageshack.us/img16/8901/circuit1s.png [Broken]
Homework Equations
I need som help with this circuitI need to use superposition to find out the value of Vx.
And to do that i need to zero the current source and voltage source
The Attempt at a...