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← ScienceWhich mechanism explains communication failure in a satellite when exposed to intense solar electromagnetic fields?
A)Single event upset from ionizing radiation✓
B)Antenna misalignment due to thermal expansion
C)Power supply overload from increased current
D)Fuel line blockage from propellant freezing
💡 Explanation
When a satellite encounters intense solar electromagnetic fields, ionizing radiation causes single event upsets by altering the charge state of semiconductors in the satellite's digital circuits. Therefore, communication failure results, rather than thermal expansion, overload, or blockage which result from different factors.
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