Question
Lightning conductors are used to protect buildings from lightning strikes. Which of the following statements regarding lightning conductors are correct? 1. A lightning conductor creates an electric field at its tip to attract the lightning discharge toward itself. 2. Lightning conductors reduce the effect of the discharge current on the building by safely transferring the electric charge into the ground. 3. The conductivity of the earth is considerably lower than that of the building. 4. Lightning conductors are installed at elevated positions on buildings. Choose the correct answer using the codes given below:
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