Find the amount of current required to deposit 0.02kg of metal in a given electrolysis for 120 seconds. [electro chemical equivalent of the metal = 1.3 x 10\(^{-7}\)kgC\(^{-1}\)]
The acceleration of a free fall due to gravity is not a constant everywhere on the Earth's surface because
An example of a non-rechargeable cell is
The dimension of power is
A boy standing 408m from a wall blew a trumpet and heard the echo 2.4s later. Calculate the speed of the sound
