Magnetism and Electromagnetism Indicate which of the following material does not retain magnetism permanently. None of the listed here Stainless steel Soft iron Hardened steel None of the listed here Stainless steel Soft iron Hardened steel ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The attraction capacity of electromagnet will increase if the Flux density decreases Core area increases Flux density increases Core length increases Flux density decreases Core area increases Flux density increases Core length increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Fleming's left hand rule is used to find Direction of force on a current carrying conductor in a magnetic field Polarity of a magnetic pole Direction of flux in a solenoid Direction of magnetic field due to current carrying conductor Direction of force on a current carrying conductor in a magnetic field Polarity of a magnetic pole Direction of flux in a solenoid Direction of magnetic field due to current carrying conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magneto-motive force in a 75-turn coil of wire when there are 4 A of current through it? 30 AT 0.3 AT 3 AT 300 AT 30 AT 0.3 AT 3 AT 300 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism If the cross-sectional area of a magnetic field increases, but the flux remains the same, the flux density increases decreases doubles remains the same increases decreases doubles remains the same ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The voltage induced across a certain coil is 200 mV. A 120 resistor is connected to the coil terminals. The induced current is 120 mA 1.7 mA 16 mA 12 mA 120 mA 1.7 mA 16 mA 12 mA ANSWER DOWNLOAD EXAMIANS APP
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