Given that the electricity was ac, this suggested to Hertz that voltage waves were separately racing through the wire along paths CA and CB. ... There is no voltage difference between A and B, so no sparks jump over the gap. Distances CA and CB are not equal. Voltage waves reach the spark-gap out of phase with one-another.
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Answer:
Given that the electricity was ac, this suggested to Hertz that voltage waves were separately racing through the wire along paths CA and CB. ... There is no voltage difference between A and B, so no sparks jump over the gap. Distances CA and CB are not equal. Voltage waves reach the spark-gap out of phase with one-another.
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