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A circular coil of wire consisting of 120 turns, each of radius 12 cm carries a current of 0.30 A. What is the magnitude of the magnetic field B at the ...
A piece of ice is floating in water kept in a beaker. When all the ice melts the level of water will -
A 5 V battery of negligible internal resistance is connected across a 190 V battery and a resistance of 37 Ω as shown in the figure. Find the value of...
The shape of our Milky Way galaxy is
The instrument used to measure the speed of the wind is –
The experimental evidence that the electron exhibits wave-like characteristics was first provided by:
The Mohs scale is used to measure:
Total mechanical energy =
Which of the following is the best conductor of electricity?
For a non-relativistic particle, the ratio of phase velocity to group velocity of de Broglie waves is: