Electricity And Magnetism - Study Mode

[#246] A transformer
Correct Answer

(B) is used to decrease or increase AC voltage

[#247] . . . . . . . . through a plane surface is the product of the magnetic flux density normal to the surface and the area of the surface.
Correct Answer

(C) Magnetic flux

[#248] What is the term of the space around a magnet where its influence can be detected?
Correct Answer

(B) Magnetic field

[#249] The potentiometer is superior to a voltmeter for measuring a potential difference because
Correct Answer

(B) the potentiometer does not draw any current from the source of the potential

[#250] If 4 resistances of $$frac{1}{4}Omega $$xa0 are connected in series order then how much the maximum resistance may be obtained?
Correct Answer

(C) 1 Ω