Question
Which of the following is a good conductor of
electricity?Solution
Copper is a very good conductor of electricity due to the presence of free electrons that can move easily through the metal. It is commonly used in electrical wiring, motor windings, power cables, and many electronic components.
Train A when travelling with a speed of 72 km/h crosses a pole in 12 seconds. Find the time taken by the train A to cross another train B of length 40% ...
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500 metre long train ‘A’ is running with a speed of 97.2 km/hr. Train ‘B’ which is 656 metre long is running with a speed of 90 km/h in opposite...
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