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प्रश्न
Conceptual question.
A bird sitting on a high power electric line is still safe. How?
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उत्तर
Birds don’t get shocked when they sit on electrical wires because they are not good conductors of electricity. Electricity flowing through a single power line at 35,000 volts will continue along the path of least resistance and bypass birds, because there is no difference in electrical potential.
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संबंधित प्रश्न
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By what other name is the unit joule/coulomb called?
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What do you understand by the term "potential difference"?
Name a device which helps to maintain potential difference across a conductor (say, a bulb).
The p.d. across a lamp is 12 V. How many joules of electrical energy are changed into heat and light when:
a charge of 1 C passes through it?
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Which one of the following is the correct set-up for studying the dependence of the current on the potential difference across a resistor and why?
Potential near a charge is the measure of its ______ to bring a positive charge at that point.
Define electric potential and potential difference.
