If the distance between two suspended masses 10kg each is tripled, the gravitational force of…
If the distance between two suspended masses 10kg each is tripled, the gravitational force of attraction between them…
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Two force each of 10N acts on a body, one towards the north and the…
Two force each of 10N acts on a body, one towards the north and the other towards the…
A body weighing 80N stands in an elevator that is about to move. The force…
A body weighing 80N stands in an elevator that is about to move. The force exerted by floor…
The hydrostatic blood pressure difference between the head and the feet of a boy standing…
The hydrostatic blood pressure difference between the head and the feet of a boy standing straight is 1.65…
A wheel and axle is used to raise a load of 500 N by the…
A wheel and axle is used to raise a load of 500 N by the application of an…
A copper cube weighs 0.25 N in air, 0.17N when completely immersed in paraffin oil…
A copper cube weighs 0.25 N in air, 0.17N when completely immersed in paraffin oil and 0.15 N…
The magnetic force on a charged particle moving with velocity v is
The magnetic force on a charged particle moving with velocity v is A. proportional to both the magnitude…
A capacitor of 20 x 10-12F and an inductor are joined in series. The value…
A capacitor of 20 x 10-12F and an inductor are joined in series. The value of the inductance…
Energy losses through eddy currents are reduced by using
Energy losses through eddy currents are reduced by using A. low resistance wires B. insulated soft iron wires…
The force on a current carrying conductor in a magnetic field is greatest when the
The force on a current carrying conductor in a magnetic field is greatest when the A. conductor makes…