Concept explainers
How birds can sit on power lines safely?
Answer to Problem 1Q
Solution:
Birds are not a poor conductor of electricity, so they offer good resistance, that’s why they can sit on the power lines safely.
Explanation of Solution
While when you lean a metal ladder up against a power line, then actually you are making a short circuit, as the voltage of the ground is very low compared to the power line, and due to higher potential difference, the current flows through the ladder and you feel the shock.
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Chapter 19 Solutions
Physics: Principles with Applications
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