Magnetism and Electromagnetism Temporary magnets are used in Loud speakers Generators Motors All of the listed here Loud speakers Generators Motors All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Core of an electromagnet should have Both low coercivity and high susceptibility None of the listed here Low coercivity High susceptibility Both low coercivity and high susceptibility None of the listed here Low coercivity High susceptibility ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will Decreases None of the listed here Increases Remain same Decreases None of the listed here Increases Remain same ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Ferrites are a sub-group of Paramagnetic material Non-magnetic materials Ferro magnetic material Ferri-magnetic material Paramagnetic material Non-magnetic materials Ferro magnetic material Ferri-magnetic material ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Fleming's left hand rule is used to find Direction of flux in a solenoid Polarity of a magnetic pole Direction of force on a current carrying conductor in a magnetic field Direction of magnetic field due to current carrying conductor Direction of flux in a solenoid Polarity of a magnetic pole Direction of force on a current carrying conductor in a magnetic field Direction of magnetic field due to current carrying conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permeable substance is one which is a bad conductor which is a strong magnet which is a good conductor through which the magnetic lines of force can pass very easily which is a bad conductor which is a strong magnet which is a good conductor through which the magnetic lines of force can pass very easily ANSWER DOWNLOAD EXAMIANS APP
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