Magnetism and Electromagnetism The attraction capacity of electromagnet will increase if the Core length increases Flux density decreases Core area increases Flux density increases Core length increases Flux density decreases Core area increases Flux density increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the flux density when the flux is 5.5 Wb and the cross-sectional area is 6 × 10–3 m2? 91.7 T 9.7 T 91 T 917 T 91.7 T 9.7 T 91 T 917 T ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit of relative permeability is Hennry Hennry/meter Its dimensionless None of the listed here Hennry Hennry/meter Its dimensionless None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When two ends of a circular uniform wire are joined to the terminals of a battery, the field at the center of the circle will depend on the radius of the circle will be infinite will be zero will depend on the amount of e.m.f. applied will depend on the radius of the circle will be infinite will be zero will depend on the amount of e.m.f. applied ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The change of cross-sectional area of conductor in magnetic field will affect None of these reluctance of conductor both of the listed here resistance of conductor None of these reluctance of conductor both of the listed here resistance of conductor ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The retentivity of material is useful for the construction of Electromagnets Permanent magnets Non-magnetic substances Transformers Electromagnets Permanent magnets Non-magnetic substances Transformers ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS