List of top Questions asked in COMEDK UGET

Repulsive force exist between two protons but side the nucleons this due to

Out of the following interactions the weakest is

A hollow spherical shell is compressed to half its radius. The gravitational potential at the centre

A moving charge interacts

A long hollow copper pipe carries a current. The magnetic field producted will be

A resistance wire of $72\,\Omega$ is connected across 120 V dc source. When a similar wire is connected in paralllel with the first wire, change in power dissipated is

When a material is placed in a magnetic field B, a magnetic moment proportional tc B but in a direction opposite to B is induced. The material is

Force of attraction or repulsion between two current carrying wires separated by a distance r is proportional to

An ammeter reads 0 to 10 A. It has negligible resistance.To convert this into voltmeter to read upto 250 V, resistance to be used is