Which term describes coils under the road that wirelessly charge EVs while driving or stopped?

Which term describes coils under the road that wirelessly charge EVs while driving or stopped?

• A. Inductive charging
• B. DSRC
• C. Trackway
• D. Holloway

Answer: (A)

Inductive charging uses magnetic fields generated by coils to transfer energy without touching the vehicle. If coils are embedded in the road, a matching coil on the EV picks up that energy and converts it back into electrical power to charge the battery. This setup can work while the car is moving (dynamic charging) or when it’s stopped over a charging strip (opportunity charging). The key idea is wireless energy transfer through magnetic coupling, which relies on careful alignment and sufficient proximity between the road coils and the vehicle’s receiving coil. DSRC is about exchanging information wirelessly for safety and traffic management, not powering the vehicle, so it’s not the right description here. Trackway and Holloway aren’t standard terms for road-embedded wireless charging, so they don’t describe this charging method.

Inductive charging uses magnetic fields generated by coils to transfer energy without touching the vehicle. If coils are embedded in the road, a matching coil on the EV picks up that energy and converts it back into electrical power to charge the battery. This setup can work while the car is moving (dynamic charging) or when it’s stopped over a charging strip (opportunity charging). The key idea is wireless energy transfer through magnetic coupling, which relies on careful alignment and sufficient proximity between the road coils and the vehicle’s receiving coil.

DSRC is about exchanging information wirelessly for safety and traffic management, not powering the vehicle, so it’s not the right description here. Trackway and Holloway aren’t standard terms for road-embedded wireless charging, so they don’t describe this charging method.