Recent content by Pepjag

So for an ideal op-amp, would Vo just end up being Vs?

Homework Statement I have to use the basic equivalent model of an op-amp to develop an expression for Vo from the given op-amp. I also have to simplify the expression by treating the given op-amp as an ideal op-amp. Homework Equations Vo=A(Vp-Vn) Vo=G*Vs The Attempt at a Solution...

I have until 11:30 ct to finish this one problem, can anyone please give input.

Wait, so you have to use the emf equation from the ring's perspective? emf = (3-5)/0.1*pi*0.24^2 = 3.62 volts. E = emf/L = 251.3/2*pi*0.24 = 2.40 V/m Or do I still use the solenoid's area for the emf?

Homework Statement A metal ring of radius r = 24 cm surrounds a solenoid of radius R = 2 cm and 10000 turns. The magnetic field inside the solenoid changes from 5 T to 3 T in 0.1 s. Find the magnitude of the non-Coulomb electric field along the ring. Answer in units of V/m Homework...

I had figured it out for a while now but thanks anyway. I just had to use the electron current formula and the voltage loop formula (as you stated); Plug in numbers, solve for e-field and plug into the other equation.

Homework Statement In the circuit shown, two thick copper wires connect a 1.5 V battery to a Nichrome wire. Each copper wire has radius R = 7 mm and is L = 18 cm long. Copper has 8.4 × 10^28 mobile electrons per cubic meter and an electron mobility of 4.4×10^−3 (m/s)/(V/m). The Nichrome wire...

Bump, this question is driving me crazy, I would love some input.

Homework Statement The center of the spherical metal ball of radius R, carrying a negative charge -Q, is located a distance r from the center of a short, thin, neutral copper wire of length L. The induced charges at the two ends of the wire is ±q. Determine the polarizability of the...