Math Aid - EP 4

Magnetism 1

20Flux Density

Calculate Flux Density (B), Flux (Φ), or Area (A).

Practice

Electromagnetic Force 3

21Force Between Two Conductors

Calculate Force, Distance, or Current for two conductors carrying different currents.

Practice

22Force Between Two Conductors (Equal Current)

Calculate Force, Distance, or Current when both conductors carry the same current.

Practice

23Force on a Current-Carrying Conductor

Calculate Force, Flux Density, or Current for a conductor in a magnetic field.

Practice

Magnetic Circuits 5

24Magnetomotive Force (Reluctance)

Calculate mmf (Fm), Reluctance (Rm), or Flux (Φ).

Practice

25Magnetomotive Force (Turns)

Calculate mmf (Fm), Turns (N), or Current (I).

Practice

26Magnetising Force

Calculate Magnetising Force (H), mmf (Fm), or Length (L).

Practice

27Absolute Permeability

Calculate Permeability (μ), Flux Density (B), or Magnetising Force (H).

Practice

28Reluctance

Calculate Reluctance (Rm), Area (A), or Length (L) of a magnetic circuit.

Practice

Electromagnetic Induction 6

29Voltage Induced in a Conductor

Calculate EMF (e), Flux Density (B), or Length (l) for a moving conductor.

Practice

30Voltage Induced in a Coil

Calculate EMF (e), Turns (N), or Time (Δt) for a coil in a changing field.

Practice

31Voltage Induced in an Inductor

Calculate EMF (e), Inductance (L), Time (Δt), or Current change (ΔI).

Practice

31.1Self-Inductance

Calculate Inductance (L), Length, Turns, Permeability, or Area of a coil.

Practice

32Energy Stored in an Inductor

Calculate Work (W), Current (I), or Inductance (L).

Practice

33LR Time Constant

Calculate Time Constant (τ), Inductance (L), or Resistance (R).

Practice

Machine Performance 4

34Torque

Calculate Torque (T), Force (F), or Radius (r).

Practice

35Voltage Regulation

Calculate Voltage Regulation (V%), Full-Load Voltage, or No-Load Voltage.

Practice

36Power Output and Speed

Calculate Output Power (Pout), Speed (n), or Torque (T).

Practice

37Efficiency

Calculate Efficiency (η), Output Power (Pout), or Input Power (Pin).

Practice