Hi
I am currently involved in building a linear motor which is based around the coil gun principle. I am having trouble understanding the equation for force used to desribe the coilgun's action.
namely:
Fx = I1*I2*dM/dX
Fy = I1*I2*dM/dX
Here we are considering two coils of wire...
oh..the M in dM/dX is the mutual inductance..(a coefficient to describe the linking flux between the two coils..coupling). I can see how 'good coupling' can help induce large currents however, i don't understand how its rate of change contributes to force..
Hi
I am currently involved in building a linear motor which is based around the coil gun principle. I am having trouble understanding the equation for force used to desribe the coilgun's action.
namely:
Fx = I1*I2*dM/dX
Fy = I1*I2*dM/dX
Here we are considering two coils of wire...
Thankyou for resolving this. So the brick does not change its energy 'state'. The transfer of energy is simply from chemical to thermal. This makes sense now.
Hi
I am not able to reason my way through conservation of energy
when I consider the following scenario..
Suppose you are holding up a weight and there is no movement of the
weight. According to theory this means no work is done on the weight
since net forces on it cancel and there is...