Three blocks A, B and C of masses 4 kg, 2 kg and 1 kg respectively, are in contact on a frictionless surface, as shown. If a force of 14 N is applied onthe 4 kg block, then the contact force between A and B is :
If in a p-n junction, a square input signal of 10 V is applied as shown,
If energy (E), velocity (V) and time (T) are chosen as the fundamental quantities, the dimensional formula of surface tension will be :
Figure below shows two paths that may be taken by a gas to go from a state A to a state C.
The ratio of the specific heats Cp/Cv =λ in terms of degrees of freedom (n) is given by :
A resitance 'R' draws power 'P' when connected to an AC source. If an inductance is now placed in series with the resistance, such that the impedance of the circuit becomes 'Z', the power drawn will be :
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