Magnetism and Electromagnetism A keeper is used to Restore lost flux Amplify flux Provide a closed path for flux Change the direction of magnetic lines Restore lost flux Amplify flux Provide a closed path for flux Change the direction of magnetic lines ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The bar magnet has Monopole moment None of the listed here Dipole moment Both dipole and monopole moment Monopole moment None of the listed here Dipole moment Both dipole and monopole moment ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following type of materials are not very important for engineering applications? None of the listed here Paramagnetic material Ferro magnetic material Diamagnetic material None of the listed here Paramagnetic material Ferro magnetic material Diamagnetic material ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The materials having low retentivity are suitable for making None of the listed here Permanent magnet Temporary Magnet Weak magnet None of the listed here Permanent magnet Temporary Magnet Weak magnet ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Air gap has_______eluctance as compared to iron or steel path lower zero higher little lower zero higher little ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A certain amount of current flows through a ring shaped coil with fixed number of turns. How does the magnetic induction B varies inside the coil if an iron core is threaded into coil without dimensional change of coil? Remains same Decreases Increases First increases and then decreases depending on the depth of iron in¬sertion Remains same Decreases Increases First increases and then decreases depending on the depth of iron in¬sertion ANSWER DOWNLOAD EXAMIANS APP
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