A short circuited coil is placed in a magnetic field varying with time. Electrical power is dissipated due to the current induced in the coil. If the number of turns were to be quadrupled and […]
An ideal spring with spring constant K is hung from the ceiling and a block of mass M is attached to its lower end. The mass is released with the spring initially unstretched. Then the […]
The potential difference applied to an X-ray tube is 5 kV and the current through it is 3.2 mA. The number of electrons striking the target per second is
Options
(a) 5 x 10¹⁶ […]
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