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Inductive sensors are also referred as “NMR” coils. What does NMR stand for?

Correct Answer: Nuclear Magnetic resonance
NMR stands for Nuclear Magnetic resonance. The “NMR (Nuclear Magnetic resonance)” coils detect the magnetic component of the EM (Electro-magnetic )field linked with the nuclear spin precession in Nuclear Magnetic resonance.

If the spring have same solid length and number of coils in the two springs are 8 and 10, then find the diameter of the spring with 8 coils. It is given diameter of spring with 10 coils is 12mm.

Statement 1: In coiled heat exchanger, the coils can be present inside and outside the vessel. Statement 2: The coils can have either hot/cold fluid present inside them or even electrical coils can be present.

Fourier transform NMR spectrometer allows NMR transitions to be observed simultaneously.

Two coils are necessary for Fourier transform NMR spectroscopy.

Given Z=228 conductors, number of coils C=38 for a DC machine. What is the turns/coils ratio?

For an electrical machine with C number of coils and P poles, the distance between the coils connected by an equalizer ring is?

The self inductances of two coils are 8 mH and 18 mH. If the coefficient of coupling is 0.5, the mutual inductance of the coils is

A spring of mean radius 40 mm contains 8 action coils of steel (N = 80000 N/mm2), 4 mm in diameter. The clearance between the coils being 1 mm when unloaded, the minimum compressive load to remove the clearance, is

Two coils have inductances of 8 mH and 18 mH and a coefficient of coupling of 0.5. If the two coils are connected in series aiding, the total inductance will be

Two coils have self-inductances of 10 H and 2 H, the mutual inductance being zero. If the two coils are connected in series, the total inductance will be