Physics - Advanced Electrodynamics - Electromagnetic radiation and antennas - How Does Your Phone Talk to a Tower?

Physics - Advanced Electrodynamics - Electromagnetic radiation and antennas - How Does Your Phone Talk to a Tower?by vivmagarwal

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Physics - Advanced Electrodynamics - Electromagnetic radiation and antennas - How Does Your Phone Talk to a Tower?

vivmagarwalJan 29, 2026

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Everyday EM radiation questions. Q1: 'When you make a phone call, what carries your voice to the cell tower?' A) Sound waves through air, B) EM waves (radio frequencies ~1-3 GHz), C) Electricity through wires. Answer: B! Your phone's antenna creates oscillating currents → radiates EM waves. Q2: 'Why

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PhysicsAdvanced ElectrodynamicsUndergraduate, Undergraduate, Undergraduate, Undergraduate, Undergraduate

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