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(a) Explain the terms: 'magnetic field strength', 'magnetic flux density' and 'permeability' of a magnetic material. Write their SI units.
A current carrying conductor is placed at an angle of 30° to a uniform Magnetic field of strength 2×10³ T. The length of the conductor inside the Magnetic field is 2 m and the current flowing through it is 1.6 A. Calculate the Magnitude of the force experienced by it.
(b) Distinguish among 'nuclear fission' and 'nuclear fusion'. Which one of them is used for release of energy in a nuclear reactor? Name one fuel used in a nuclearreactor.
(c) With the help of a circuit diagram, explain the working of a P-N-P transistor.
The temp gradient is similar to finding the slope of a line (when in two dimensions) Temp. Gradient= Change in Temp. value/Distance. dT/dx = (T2 - T1)/(X2 - X1)
What do you mean by Doppler effect? Derive a mathematical expression for the apparent frequency of a note, when source of sound and observer are approaching each other.
Construction and working of michelson interferometer,.how will you use it to measure the wavelength of a monochromatic light.
Consider the 4-f system below where an object is placed at the input plane and is illuminated by a plane wave The object to the right is placed in the input plane where b
is always del U o in cyclic process
what is b.c.s theory?
What are coiled roped and woven/knitted optics? Simply woven or braided ropes manufactured along with thin solid core fiber optics, in place of hemp or nylon. Due to the stra
to calculate average speed, divide distance by time?
Explain physically how a p-n junction functions as a rectifier. Ans: When a P-N junction diode is forward-biased and applied voltage is increased from zero, hardly any current
Describe, with the help of a nuclear reaction in each of the following cases, how the neutron to proton ratio alters during (i) alpha-decay (ii) beta-decay?
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