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BBC
2 个月
Electromagnetic effects
Increasing the number of turns on the coil of wire The image below illustrates a simple experiment to demonstrate electromagnetic induction. The direction of a motor effect force can be found ...
4 天
on MSN
Scientists Want to Define the Kilogram by Gravity—Not Electricity. They’re Onto Something.
Scientists want to define the kilogram by gravity—and not just electricity. Here’s why correctly quantifying mass is more ...
openaccessgovernment
14 天
Understanding electromagnetic hypersensitivity (EHS)
Michael Bevington explains the health risks associated with exposure to radiofrequency radiation and electromagnetic fields ...
5 天
on MSN
Plasma heating efficiency in fusion devices boosted by metal screens
Heating plasma to the ultra-high temperatures needed for fusion reactions requires more than turning the dial on a thermostat ...
3 天
on MSN
CBSE Class 12 Physics Board Exam 2025: Expert-recommended expected questions from ...
The CBSE Class 12 Board Exams 2025 will start on February 15, with the Physics exam scheduled for February 21. With less than ...
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