A simple electromagnet consisting of a coil of insulated wire wrapped around an iron core<span>. A </span>core<span> of ferromagnetic material like </span>iron<span> serves to increase the magnetic field created. The strength of magnetic field </span>generated<span> is proportional to the amount of </span>current<span> through the winding.</span>
<span>the speed of something in a given direction. so i think none of these</span>
The less dense areas created as a sound wave propagates are called Rarefactions
Answer:
Convergence generally means coming together, while divergence generally means moving apart. In the world of finance and trading, convergence and divergence are terms used to describe the directional relationship of two trends, prices, or indicators.
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Answer:
lead
Explanation:
Lead was once widely used in the United States as a gasoline additive.
Addition of lead is in the form of tetra ethyl lead(II).
It helps to improve the octane rating of gasoline and to produce more useful energy via each combustion step.
- The compound containing lead was banned due to the huge health risk it poses to people.
- Lead poisoning is a known defect that affects people.
- When the gasoline is combusted, it releases lead as a by-product.
- Exposure to a high level of lead can cause brain damage and kidney failure.