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Define Ohm's Law
Ohm's Law: Relationship among the potential difference across an electric device and the current that runs by it.
V= I.R
Q. A neutral Ping Pong ball dangles from the ceiling by a thread. A person chafes a rubber rod with animal fur and then touches the Ping Pong ball with the rubber rod. Afterwar
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what is sound wave
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Theory of bi prism
A floater to show surface tension Bend a piece of small copper wire into a ring about 8 cm in diameter. Attach two other pieces of wire rigidly to conflicting sides of the ring
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