The problem with the high frequency grids is that as the frequency increases, the lead content ____.
A) increases
B) decreases
C) stays the same
D) is completely removed

Question

Quizplus · Accepted Answer

As frequency increases, the skin effect becomes more pronounced, causing the current to flow primarily on the surface of the conductor. This means that the current-carrying capacity of the conductor decreases, and therefore, the need for a larger conductor becomes necessary. Lead is a common material used for the sheathing of high-frequency cables, but it is not a desirable material due to its toxicity. Thus, as the frequency increases, the lead content in the cables is decreased, and alternative materials are used for the sheathing of the cables. Therefore, the lead content decreases as the frequency increases.

The Problem with the High Frequency Grids Is That as the Frequency