Henry (H)
Definition: The henry (symbol: H) is the SI derived unit of electrical inductance. It is 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.
History/origin: Named in honor of Joseph Henry (1797–1878), who discovered electromagnetic induction around the same time as Michael Faraday. It was officially adopted by the International Electrotechnical Commission in 1893.
Current use: The Henry is used to specify the inductance of large coils, power transformers, and heavy industrial inductors.
Nanohenry (nH)
Definition: A nanohenry is equal to one-billionth (10⁻⁹) of a henry.
History/origin: The move toward gigahertz-frequency computing and advanced semiconductor technology in the late 20th century brought the nanohenry into common engineering use.
Current use: Essential in the design of modern CPUs, high-speed telecommunications equipment, and microwave-frequency circuits.
Henry (H) to Nanohenry (nH) Conversion Table
| Henry (H) [h] | Nanohenry (nH) [nh] |
|---|---|
| 0.01 h | 10000000 nh |
| 0.1 h | 100000000 nh |
| 1 h | 999999999.99999988 nh |
| 2 h | 1999999999.99999976 nh |
| 3 h | 2999999999.99999952 nh |
| 5 h | 4999999999.99999905 nh |
| 10 h | 9999999999.99999809 nh |
| 20 h | 19999999999.99999619 nh |
| 50 h | 49999999999.99999237 nh |
| 100 h | 99999999999.99998474 nh |
| 1000 h | 999999999999.99987793 nh |
How to Convert Henry (H) to Nanohenry (nH)
1 h = 999999999.99999988 nh
1 nh = 0 h
Example: convert 15 h to nh:
15 h = 15 × 999999999.99999988 nh = 14999999999.99999809 nh
Did You Know?
- Did you know? The unit "Henry" is named after Joseph Henry, an American scientist who discovered self-inductance independently of Michael Faraday around the same time!
- Nanohenries (nH) represent extremely small levels of inductance, often found in high-speed computer processors and modern integrated circuits (ICs).