Magnetism and Electromagnetism A permeable substance is one through which the magnetic lines of force can pass very easily which is a good conductor which is a bad conductor which is a strong magnet through which the magnetic lines of force can pass very easily which is a good conductor which is a bad conductor which is a strong magnet ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The induced voltage across a stationary conductor in a stationary magnetic field is zero increased decreased reversed in polarity zero increased decreased reversed in polarity ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is a ferromagnetic material? Tungsten Copper Aluminium Nickel Tungsten Copper Aluminium Nickel ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The direction of a magnetic field within a magnet is back to front from south to north front to back from north to south back to front from south to north front to back from north to south 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? First increases and then decreases depending on the depth of iron in¬sertion Increases Remains same Decreases First increases and then decreases depending on the depth of iron in¬sertion Increases Remains same Decreases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The retentivity of material is useful for the construction of Electromagnets Transformers Non-magnetic substances Permanent magnets Electromagnets Transformers Non-magnetic substances Permanent magnets ANSWER DOWNLOAD EXAMIANS APP
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