Campbell standard of mutual inductance
Wall Art and Photo Gifts from Science Photo Library
Campbell standard of mutual inductance
Campbell standard of mutual inductance. Mr A. Campbell designed this standard of mutual inductance in 1907-8. Two single-layer copper coils (upper and lower centre) are wound onto the outside of a marble cylinder containing a multiple-layered inner copper coil (not seen). The current passing through the inner coil induces a specific voltage in the outer coils. This phenomenon is known as mutual inductance. The Campbell standard of mutual induction was used to determine the Ohm (a unit of electrical resistance). Photographed in 1960
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6467933
© NATIONAL PHYSICAL LABORATORY CROWN COPYRIGHT/SCIENCE PHOTO LIBRARY
1900s 1960 1960s Coil Conductor Copper Electrical Electricity History Of Science Inductor Machine National Physical Laboratory Resistance Voltage Mono Chrome Physical
EDITORS COMMENTS
This photograph captures the Campbell standard of mutual inductance, a significant milestone in the history of electrical engineering. Designed by Mr A. Campbell back in 1907-8, this intricate apparatus showcases two single-layer copper coils wound around a marble cylinder that houses a multiple-layered inner copper coil. The purpose of this innovative design was to demonstrate the phenomenon known as mutual inductance. As an electric current flows through the inner coil, it induces a specific voltage within the outer coils. This groundbreaking discovery paved the way for measuring electrical resistance using Ohms, which are units derived from this very principle. Taken at England's National Physical Laboratory in 1960, this monochromatic image exudes both historical charm and technological significance. It serves as a reminder of how far we have come since then while honoring the pioneers who laid the foundation for modern-day advancements. With its meticulous craftsmanship and attention to detail, this photograph not only captures an important piece of scientific equipment but also encapsulates decades' worth of research and progress within physics and electrical engineering fields. It stands as a testament to human curiosity and ingenuity that continues to shape our world today.
MADE IN THE UK
Safe Shipping with 30 Day Money Back Guarantee
FREE PERSONALISATION*
We are proud to offer a range of customisation features including Personalised Captions, Color Filters and Picture Zoom Tools
FREE COLORIZATION SERVICE
You can choose advanced AI Colorization for this picture at no extra charge!
SECURE PAYMENTS
We happily accept a wide range of payment options so you can pay for the things you need in the way that is most convenient for you
* Options may vary by product and licensing agreement. Zoomed Pictures can be adjusted in the Basket.
