Magnetism and Electromagnetism An electromagnetic field exists only when there is decreasing current voltage an increasing current current decreasing current voltage an increasing current current ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The use of permanent magnets is. not made in Transformers None of the listed here Energy meters Loud speakers Transformers None of the listed here Energy meters Loud speakers ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What will be the magnetic potential difference across the air gap of 2 cm length in magnetic field of 200 AT/m? 16 AT 10 AT 8 AT 4 AT 16 AT 10 AT 8 AT 4 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage decreases remains constant increases reaches zero decreases remains constant increases reaches zero ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The relative permeability is less than unity is case of Paramagnetic material Diamagnetic material Ferromagnetic material Ferrits Paramagnetic material Diamagnetic material Ferromagnetic material Ferrits ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the north poles of two bar magnets are brought close together, there will be a downward force a force of attraction no force a force of repulsion a downward force a force of attraction no force a force of repulsion ANSWER DOWNLOAD EXAMIANS APP
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