Magnetism and Electromagnetism What is the magneto-motive force (mmf) of a wire with 8 turns carrying three amperes of current? 2,400 At 2.4 At 240 At 24 At 2,400 At 2.4 At 240 At 24 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The Biotsavart's law is a general modification of Faraday's laws Ampere's law Kirchhoff's law Lenz's law Faraday's laws Ampere's law Kirchhoff's law Lenz's law ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism There is 900 mA of current through a wire with 40 turns. What is the reluctance of the circuit if the flux is 400 Wb? 90,000 At/Wb 9,000 At/Wb 14,400 At/Wb 1,440 At/Wb 90,000 At/Wb 9,000 At/Wb 14,400 At/Wb 1,440 At/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism If the steel disk in a crankshaft position sensor has stopped with the tab in the magnet's air gap, the induced voltage Decrease Increase None of the listed here Is zero Decrease Increase None of the listed here Is zero ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The most effective and quickest may of making a magnet from soft iron is by Rubbing with another magnet Placing it inside a coil carrying current The use of permanent magnet Induction Rubbing with another magnet Placing it inside a coil carrying current The use of permanent magnet Induction ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Ferrites are a sub-group of Ferri-magnetic material Ferro magnetic material Non-magnetic materials Paramagnetic material Ferri-magnetic material Ferro magnetic material Non-magnetic materials Paramagnetic material ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS