Magnetism and Electromagnetism Indicate which of the following material does not retain magnetism permanently. Hardened steel None of the listed here Stainless steel Soft iron Hardened steel None of the listed here Stainless steel Soft iron ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Temporary magnets are used in All of the listed here Loud speakers Motors Generators All of the listed here Loud speakers Motors Generators ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A square cross-sectional magnet has a pole strength of 1 x 10 Wb and cross sectional area of 20 mm x 20 mm. What is the strength at a distance of 100 mm from the unit pole in air ? 6338 N/Wb 633.8 N/Wb 63380 N/Wb 63.38 N/Wb 6338 N/Wb 633.8 N/Wb 63380 N/Wb 63.38 N/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following materials are diamagnetic? Silver Copper Iron Silver and copper Silver Copper Iron Silver and copper ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is a ferromagnetic material? Nickel Copper Tungsten Aluminium Nickel Copper Tungsten Aluminium 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 Remain Constant Decrease Increase Be excessive Remain Constant Decrease Increase Be excessive ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS