Well my circuits exactly the same, except there's no voltage divider at Vin (I've used a zener for reference voltage) and a resistor between the op amp output and pnp base. My sensing resistance is between Vs and emitter (so no low-side current sensing) and the load between collector and ground...
Hey, I know this thread is about a year old, but I was working with the same thing, so thought I'd post here itself..
Even I derived the output current as I= (+Vs-Vin)/R
but I found a book that says I=Vin/R
and what's more! I tried the circuit out in lab and found the latter to be the...
Do we know why radioactive nuclei only decay through emission of alpha and beta particles? There is spontaneous fission in some cases, of course, but what I mean to ask is, why should just a proton or just a neutron or a particle X with 2 protons and 3 neutrons, or whatever else not be emitted...
As Easty says, you have to use both the definitions of f(t) for both an and bn.
Meaning, an will be sum of two integrals :
-One going from -ve infinity to 0 and using the first definition of f(t)=1-t2.
-Second going from 0 to infinity, using the second definition of f(t)=1.
Likewise for...
k is the propagation vector, it represents the direction of the wave. When the wave reflects, the direction is reversed, hence k changes sign.
If you change the sign of E instead of that of k, you have a wave traveling in the same direction as initially.
Clem, can you help me understand what...
Oh i just realized I shouldn't be averaging the decay constants.
Decay constant = Number of decays per unit time.
So the sum of the two decay constants would give me the total decays in unit time (Gamma or bets).
0.693 times the inverse of that would be my half life.
Forgive me for being too...
Homework Statement
A sample of radioactive nuclei of a certain element
can decay only by gamma -emission and beta -emission. If
the half-life for gamma -emission is 24 minutes and that
for beta -emission is 36 minutes, what's the half-life for the sample?
2. The attempt at a solution...
I am trying to get a hang of miller indices and doing some practice.
So here it is : What would be the miller indices of the plane containing the x-axis and equally inclined to y and z axes?
(I have uploaded the diagram and highlighted the plane to clarify)
Attempts :
I first try to...