A block of mass m is held in equilibrium against a vertical wall by a horizontal force. If the coefficient of friction between the wall and the block is µ, the minimum value of the horizontal force is
In the fig above W\(_1\) = 200g, and W\(_2\) =450g. Calculate the extension of the spring per unit load.
[g = 10ms\(^{-2}\)]
The air column as shown above is set into vibration by the turning fork. In this State of resonance, the waves in the air column will be
Three 2-µF capacitors are arranged as seen in the circuit above . The effective capacitance between E and F is
