Magnetism and Electromagnetism Strength of an electromagnet can be increased by Increasing the number of turns All of the listed here Increasing current supply Increasing the cross-sectional area Increasing the number of turns All of the listed here Increasing current supply Increasing the cross-sectional area ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magnetomotive force (mmf) of a wire with 8 turns carrying three amperes of current? 24 At 2.4 At 240 At 2,400 At 24 At 2.4 At 240 At 2,400 At ANSWER DOWNLOAD EXAMIANS APP
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 24 At 240 At 2,400 At 2.4 At 24 At 240 At 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 T 91.7 T 917 T 9.7 T 91 T 91.7 T 917 T 9.7 T ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is expected to have the maximum permeability ? Zinc Ebolite Brass Copper Zinc Ebolite Brass Copper ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Core of an electromagnet should have Low coercivity Both low coercivity and high susceptibility None of the listed here High susceptibility Low coercivity Both low coercivity and high susceptibility None of the listed here High susceptibility ANSWER DOWNLOAD EXAMIANS APP
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