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Calculate the current needed in a 240 mm length of conductor of a d.c. motor when the conductor is situated at right-angles to the magnetic field of flux density 1.25T, if a force of 1.20N is to be exerted on the conductor.
A conductor carries a current of 70A at right-angles to a magnetic field having a flux density of 1.5T. If the length of the conductor in the field is 200mm measure the force acting on the conductor.
What is the force when the conductor and ?eld are at an angle of 450?
why ballistic missile is unpowered and unguided
The structure of a simple d.c. motor and explain briefly how it works
In the figure below the closed curves A and B represent closed surfaces. What is the total flux by the closed surface A? Ans: In concurrence with Gauss's Law the net o
Q. What is Fraunhofer diffraction? a) The source as well as the screen are at infinite distances from the obstacle producing diffraction. b) The wave front suffer diffracti
thery
two insulated charged copper spheres A and B of identical size have charge q and -3q respectably .when they are brought in contact with each other and then separated,what are the n
It consists of two semis circular plates. One is of quartz and other is glass plate joined together along the diameter. The quartz semi circular plate is a half wave plate whose
what is the working principle of diamond dosimeter and whast are its advantages and disadvantages over other dosimeters?
Q. State Moseley's law. The frequency of the spectral line in the qualities X-ray spectrum is directly proportional to the square of the atomic number (Z) of the element consid
Explain the Elementary Particles and Particle Accelerators More than 100 particles smaller than the proton, electron and neutron have been discovered and are referred to as eleme
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