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The iPhone 15 Pro and iPhone 15 Pro Max use USB-C with USB 3.2 Gen 2 transfer speeds (est. up to 10Gbit/s / 1.25 GB/s), [18] [19] an improvement over the iPhone 14 Pro and the iPhone 15/15 Plus base models which only have USB 2.0 transfer speeds (est. up to 480 Mbit/s / 60 MB/s).
In electrical engineering, electromagnetic shielding is the practice of reducing or redirecting the electromagnetic field (EMF) in a space with barriers made of conductive or magnetic materials. It is typically applied to enclosures, for isolating electrical devices from their surroundings, and to cables to isolate wires from the environment ...
Like the iPhone 15 Pro and Pro Max, the 15 and 15 Plus are the first iPhones to replace the proprietary Lightning connector with USB-C to comply with European Union mandates. The iPhone 15 and 15 Plus are the last iPhones to feature 6 GB of RAM and the mute switch, as the 15 series didn't get the Action Button like the 15 Pro series.
A calculator function has been included with iOS since its launch on iPhone [8] and iPod Touch. [9] A native calculator function was added to the Apple Watch with watchOS 6, which included a dedicated button for calculating tips. [10] The Calculator app was not available on Apple's iPad tablet until the release of iPadOS 18 in September
If ΔΦ B is positive, the direction of the emf is the same as that of the curved fingers (yellow arrowheads). If ΔΦ B is negative, the direction of the emf is against the arrowheads. [22] It is possible to find out the direction of the electromotive force (emf) directly from Faraday’s law, without invoking Lenz's law.
Counter-electromotive force (counter EMF, CEMF, back EMF), [1] is the electromotive force (EMF) manifesting as a voltage that opposes the change in current which induced it. CEMF is the EMF caused by electromagnetic induction .
An EMF meter is a scientific instrument for measuring electromagnetic fields (abbreviated as EMF). Most meters measure the electromagnetic radiation flux density (DC fields) or the change in an electromagnetic field over time (AC fields), essentially the same as a radio antenna, but with quite different detection characteristics.
Various governments have defined maximum SAR levels for RF energy emitted by mobile devices: United States : the FCC requires that phones sold have a SAR level at or below 1.6 watts per kilogram (W/kg) taken over the volume containing a mass of 1 gram of tissue that is absorbing the most signal.