Magnetism and Electromagnetism The main constituent of permalloy is Tungsten Nickel Chromium Cobalt Tungsten Nickel Chromium Cobalt 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 Be excessive Increase Remain Constant Decrease Be excessive Increase Remain Constant Decrease ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The commonly used material for shielding or screening magnetism is Brass Aluminium Soft iron Copper Brass Aluminium Soft iron Copper ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Two long parallel conductors carry 100 A. If the conductors are separated by 20 mm, the force per meter of length of each conductor will be 0.01 N 10 N 100 N 0.1 N 0.01 N 10 N 100 N 0.1 N ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The electromagnet has 50 turns and a current of 1A flows through the coil. If the length of the magnet circuit is 200 mm, what is the magnetic field strength? 25 AT/m 2500 AT/m 0.25 AT/m 250 AT/m 25 AT/m 2500 AT/m 0.25 AT/m 250 AT/m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is not a unit of flux? Tesla Maxwell Weber All of the listed here Tesla Maxwell Weber All of the listed here ANSWER DOWNLOAD EXAMIANS APP