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← ScienceWhich mechanism prevents immediate spark breakdown in capacitors?
A)Dielectric polarization reduces electric field✓
B)Corona discharge increases ion concentration
C)Thermal runaway accelerates breakdown effects
D)Electrode surface emits photoelectrons readily
💡 Explanation
Dielectric polarization orients the molecules which reduces the magnitude of the internal electric field, because the capacitor stores energy by charge separation; therefore breakdown is delayed rather than initiated by electron emission or quick ionization.
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