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What two properties of electromagnetic waves are used to attach info to radio signals?
a) By varying the amplitude of a radio wave, you can determine information. That is how AM -radio works.
b) By varying the frequency (and as its wavelength) of a radio wave, you can also determine information. That is how FM radio works.
Q. Give any three utilizes of secondary cells. i) The secondary cells are rechargeable. ii) They have extremely low internal resistance. iii) They are able to deliver a
A bar magnet having of two equal and opposite magnetic pole separated by a small distance. Poles are not precisely at the last. The smallest distance among two poles is known as ef
1. During an experiment, the osmotic pressure was recorded with respect to different concentrations of an enzyme. The results of the experiment are shown in the table below. a.
hi
what is total internal reflection ?
Q. Compute the mutual inductance between two coils when a current of 4 a changing to 8 a in 0.5 s in one coil induces an emf of 50 mV in the other coil. Induce emf e = -
The least count of the stopwatch is 0.1 second because in stopwatch we can measure milliseconds also...
In a plot of photoelectric current versus anode potential, how does 1. The saturation current varies with anode potential for incident radiations of dissimilar frequencies but s
UNIT: SI unit of force is Newton (N).
comparison of magnetic moments using an vibrational magnetometer
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