88 Henry = 88,000.00 Millihenry
Conversion Formula
Unit Information
Henry
The SI derived unit of electrical inductance, named after American scientist Joseph Henry. Defined as the inductance of a closed circuit in which an electromotive force of one volt is produced when the electric current in the circuit varies uniformly at a rate of one ampere per second. Fundamental to electrical engineering and electronics for characterizing energy storage in magnetic fields, transformer design, filter circuits, and power systems. Essential for understanding electromagnetic phenomena and designing inductive components.
Millihenry
A metric subunit of electrical inductance equal to one thousandth of a henry (10⁻³ H). Commonly used for practical inductors in electronic circuits, power supplies, and filtering applications. Represents typical inductance values for air-core inductors, ferrite-core inductors, and chokes used in DC-DC converters, RF circuits, and electromagnetic interference suppression. Essential for circuit design where inductive components control current flow, store magnetic energy, and filter high-frequency noise.
Conversion Tips
- Remember to check your decimal places for accuracy.
- This conversion is commonly used in international applications.
- Consider the context when choosing precision levels.
- Double-check calculations for critical applications.
Learn More About Inductance
Scientific Overview
Inductance is the property of an electrical conductor by which a change in electric current through it induces an electromotive force (EMF) in both the conductor itself (self-inductance) and in any nearby conductors (mutual inductance). It is measured in henries (H).
Historical Background
The phenomenon of inductance was discovered in the 1830s by Michael Faraday and Joseph Henry independently. Faraday formulated the law of electromagnetic induction, while Henry demonstrated self-inductance. The unit henry is named after Joseph Henry.
Real-World Applications
Power Electronics
Inductors store energy and filter current in switching power supplies.
Signal Processing
Inductors are used in tuned circuits for frequency selection in radios and TVs.
Electric Motors
Inductance principles are fundamental to the operation of transformers and electric motors.
EMI Suppression
Inductors block high-frequency noise in electronic circuits.
Wireless Charging
Inductive coupling enables contactless energy transfer.
Interesting Facts
- A changing current through an inductor creates a magnetic field that opposes the change.
- Superconducting magnets can have inductances of thousands of henries.
- The human body has negligible inductance compared to typical electronic components.
- Air core inductors have lower inductance but can operate at higher frequencies.
- Inductance causes the "kickback" voltage spike when current is suddenly interrupted.
Key Formulas
Faraday's Law
ε = -L(di/dt)Energy Storage
E = ½LI²Inductance of Solenoid
L = μN²A/lRL Time Constant
τ = L/RMutual Inductance
M = k√(L₁L₂)