Amit & Deepali Sinha Foundation

3.5 Magnetostatics

Irodov Problems 3.219 to 3.287.

  • 69problems
  • 165figures
  • Difficulty2.4avg
  • Uniqueness3.0avg
No.TitleDifficultyUniquenessMethods
3.219Every Element Pushes Along the Axisbiot savart · symmetry · superposition
3.220A Polygon Closing In on a Circlebiot savart · superposition · limiting cases
3.221Diagonals Set the Frame's Fieldbiot savart · superposition
3.222Arc and Chord Pull Togetherbiot savart · superposition
3.223Radial Wires Add Nothing at the Centerbiot savart · superposition
3.224The Field of a Missing Stripsuperposition · ampere law · symmetry
3.225Half a Tube, Field Along Its Edgessuperposition · ampere law · symmetry
3.226Arcs, Tangents and Radial Leadsbiot savart · superposition
3.227Two Half Wires at Right Anglesbiot savart · superposition · vector decomposition
3.228Arc and Wire Fields Add at Right Anglesbiot savart · superposition · vector decomposition · kirchhoff rules
3.229A Current Sheet Halves Its Jumpampere law · symmetry · superposition
3.230Field Grows Inside, Then Levels Offampere law · symmetry
3.231The Plane Shields Its Underside Completelyampere law · symmetry
3.232An Open Line That Acts Closedbiot savart · ampere law · magnetic dipole
3.233Inside a Wire, B Is Half j Cross rampere law · current density · symmetry
3.234A Hole Holds a Uniform Fieldampere law · superposition · current density
3.235Reading the Current Off the Fieldampere law · current density · symmetry
3.236A Short Coil Falls Shortbiot savart · superposition · limiting cases
3.237Half the Field at the Mouthbiot savart · superposition · approximation expansion
3.238A Strip Is Also a Wireampere law · symmetry · superposition
3.239The Winding Is One Turn Tooampere law · biot savart · symmetry
3.240A Flux That Ignores the Radiusampere law · symmetry
3.241Half the Flux Leaves Before the Endsymmetry · superposition · ampere law
3.242A Logarithm from a Rectangleampere law · symmetry
3.243Weighing a Loop by Its Centrebiot savart · magnetic dipole
3.244Turn Moments Add Along the Chordmagnetic dipole · vector decomposition · symmetry
3.245A Spiral Is a Stack of Ringsbiot savart · magnetic dipole · superposition
3.246Spinning Charge Becomes Ring Currentsbiot savart · magnetic dipole · superposition
3.247Every Latitude Adds to the Centerbiot savart · superposition · symmetry
3.248Charge Follows Mass, Ratio Followsmagnetic dipole · angular momentum · moment of inertia
3.249Two Opposite Currents Cancel at Centerdielectric polarization · ampere law · symmetry
3.250Magnetism as a Small Correctionbiot savart · lorentz force · coulomb law
3.251The Rest of the Wire Pushesbiot savart · ampere force · superposition
3.252The Field That Bursts a Coilampere force · stress strain · free body
3.253One Side Turns, Three Sides Weighampere force · torque · free body
3.254A Couple Weighed on a Balancemagnetic dipole · torque
3.255Only the Two Parallel Sides Countampere force · ampere law · work energy
3.256Matched Load, No Force Between Wiresampere force · capacitance · electrostatic force · gauss law
3.257A Wire on a Half Cylinder's Axisampere force · superposition · symmetry
3.258A Strip Pulled as Many Filamentsampere force · superposition
3.259Field Lines Push Like a Gasampere law · ampere force · magnetic energy
3.260Pressure and Shear on a Current Sheetampere law · ampere force · vector decomposition
3.261A Pump with No Moving Partsampere force · hydrostatics
3.262Half the Jump Pushes the Wallampere law · ampere force · superposition
3.263The Field Inside Pushes the Winding Outampere law · ampere force · magnetic energy
3.264A Solenoid Bursts Like a Boilerampere force · ampere law · free body
3.265A Generator with No Moving Partslorentz force · motional emf · max power transfer
3.266A Wire's Own Field Makes a Hall Voltageampere law · lorentz force · current density
3.267One Free Electron per Sodium Atomlorentz force · current density · conduction mechanisms
3.268The Hall Angle Measures the Mobilitylorentz force · conduction mechanisms
3.269A Small Loop Feels the Gradientmagnetic dipole · ampere law · vector decomposition
3.270A Small Coil Pulled Along an Axismagnetic dipole · biot savart · potential energy
3.271Two Coaxial Dipolesmagnetic dipole · approximation expansion
3.272A Magnet Is a Ring Currentmagnetic materials · biot savart · approximation expansion
3.273Normal B, Tangential H Carry Acrossmagnetic materials · ampere law · vector decomposition
3.274Where H Has Sources and B Circulatesmagnetic materials · ampere law · gauss law
3.275Molecular Currents That Cancel Outsidemagnetic materials · ampere law · symmetry
3.276B Flows On, H Steps Downmagnetic materials · ampere law · approximation expansion
3.277One Field Shared by Two Mediaampere law · magnetic materials · symmetry
3.278A Loop Lying on a Magnetmagnetic materials · ampere law · symmetry
3.279A Magnetic Ball Gathers the Fieldmagnetic materials · superposition
3.280A Winding That Silences a Magnetmagnetic materials · ampere law
3.281Inside a Magnet, H Runs Backwardmagnetic materials · ampere law
3.282A Millimeter Gap Takes the Leadampere law · magnetic materials
3.283Iron Is Most Permeable at the Kneemagnetic materials · optimization
3.284A Load Line Meets the Ironmagnetic materials · ampere law
3.285The Coil Pulls a Paramagnetic Rodmagnetic materials · magnetic dipole · magnetic energy
3.286Weighing a Ball's Pull to a Polemagnetic materials · magnetic dipole · optimization
3.287Work to Pull a Ball from a Fieldmagnetic materials · work energy · magnetic energy