Question

why large voltage will be used to produced sparks based on Hertz experiment​

Answer 1

Answer:

Sparks could only be generated if there was a large voltage difference between points A and B. ... Voltage waves reach the spark-gap out of phase with one-another. There is a voltage difference between A and B, so sparks jump over the gap.

Answer 2

Answer:

of the voltage differential between A and B.

Explanation:

Only a big voltage difference between sites A and B might cause sparks to form. The voltage waves arriving at the spark gap are out of phase. Sparks leap over the gap because of the voltage differential between A and B.

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