A brushed DC motor has a commutator. Explain its function
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- So the emf is the same in the loop and the solenoid? I am not sure why?3. A rod of mass m and radius R on two parallel rails that are a distance d apart and have a length L. The rod carries a curret I in the in the direction shown and rolls along the rails without slipping. A uniform magnetic field B is directed perpendicular to the rod and rails. If it starts from rest, what is the speed of the rod as it leaves the rails? (Chapter 29, Problem 38, Physics for Scientists and Engineers - 9th ed. ) B LIn your own words, explain why the presence of a ferromagnetic core increases the inductance of a coil. Calculate the inductance of a coil wound on a ferromagnetic cylinder of 2 mm diameter and 10 mm length. There are 200 turns on the coil and the relative permeability of the core is 600. How does a real inductor differ from an ideal component?
- For an inductor, how does the electromotive force relate to the current and inductance of that inductor? Please provide an equation.A simple DC motor is shown below. In this motor, the armature (the part that spind consists of a single loop (coil). IC기You are building a solenoid 0.110 m long to create a 0.500 T field when 2.55 A run through the coil. How many loops do you need to make? (No unit)