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The ratio of the amplitudes of the electric field and magnetic field strengths has the same dimensions as that of:
The absolute temperature of a body A is five times that of another body B. For two bodies, the difference in wave lengths at which energy radiated is ma...
A constant retarding force of 60 N is applied to a body of mass 25 kg moving initially with a speed of 12 m s–1. How long does the body...
For a cell terminal potential difference is 3.5 V when circuit is open and reduces to 2.5 V when cell is connected to a resistance of R = 10Ω then...
An object at rest will remain at rest and an object in motion will remain in motion until and unless it is acted upon by an external force. This is New...
A stream of water flowing horizontally with a speed of 20 m/s pushes out of a tube of cross-sectional area 10-1m2 and hits at a v...
A 5 V battery of negligible internal resistance is connected across a 190 V battery and a resistance of 37 Ω as shown in the figure. Find the value of...
Which law states that the induced electromotive force (e.m.f.) is proportional to the rate of change of magnetic flux linkage?
In half-wave rectifier, what is the output frequency if the input frequency is 40 Hz. What is the output frequency of a full-wave rectifier for the same...
The rate of transfer of charges through a circuit is called?