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What is this electrical component CR - Physics Forums What is this electrical component "CR"? Hey folks, Can anyone give me a hint to what the CR symbol in this wiring diagram might mean? I'm thinking it is some kind of switch The equipment is a solar cell tester Basically it traces I-V curves In the attached picture the pins (circles) contact the solar cell (anode and cathode on the back)
Circuit Symbol CR: Decoding the Mysterious Ref Designator in Diode . . . Circuit symbol "CR" I have seen in some old schematics that diodes are labeled "CR" as a ref designator instead of D I am just curious what the intention of this was since I have never seen a diode labeled with CR until now CR = crystal rectifier or current rectifier?
Constructing a Self-Propelled Car without Gas Electricity - Physics Forums For a science competition I have to construct a self-propelled car that doesn't use gas or electricity It must accelerate horizontally and then go off a an incline and land 1 meter away from the end of the incline I was completely prepared and I used a gear mechanism which worked beautifully
Electrostatics - spherically symmetric charge density - Physics Forums Homework Statement Imagine a spherically symmetric charge density p(x) = Cr for r≤a and 0 for r>a (a) determine the electric field E(x) and potential V(r) Notice that V(r) and E(x) are continuous at r=a (b) Now suppose additional charge is placed uniformly on the surface at r=a, with
Fundamental Theorem of Line Integral question - Physics Forums The question is suppose that F is an inverse square force field, that is, F(r)=cr |r^3| where c is some constant r = xi + yj + zk Find the work done by F in moving an object from a point P1 along a path to a point P2 in terms of the distances d1 and d2 from those points to the origin
Relative permittivity of a conductor • Physics Forums An applied electric field in a material will induce dipole moments in the materials atoms or molecules These dipole moments will create a net reduction in the total electric field (since the moment created has its own secondary electric field that opposes the applied field)
Find the power radiated using the Poyting vector - Physics Forums Find the power radiated using the Poynting vector Homework Statement As a model for electric quadrupole radiation, consider two oppositely oriented oscillating electric dipoles, +p_{0} cos \\omega t at z=+d 2, and -p_{0} cos \\omega t at z=-d 2, hence separated by a distance d along the
Sphere-with-non-uniform-charge-density ρ= k r - Physics Forums 1 Homework Statement A sphere of radius R carries charge Q The distribution of the charge inside the sphere, however, is not homogeneous, but decreasing with the distance r from the center, so that ρ(r) = k r
Orientation of Electric Fields in a Bucking Coil Setup - Physics Forums TL;DR Summary Imagine two series coils carrying a Time varying current such that magnetic fields of both coils oppose each other, what will be the orientation and polarization of the Induced Electric Fields due to changing magnetic fields in the Space between the coils (circled by Orange Box in Fig 1) ?