Magnetism and Electromagnetism In a simple magnetic field the strength of magnet flux increases continuously from initial value to final value first increases and then decreases till it becomes zero decreases continuously from initial value to final value is constant and has same value in energy part of the magnetic field increases continuously from initial value to final value first increases and then decreases till it becomes zero decreases continuously from initial value to final value is constant and has same value in energy part of the magnetic field ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the north poles of two bar magnets are brought close together, there will be no force a downward force a force of attraction a force of repulsion no force a downward force a force of attraction a force of repulsion ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be 2.4 N 240 N 24 N 0.24 N 2.4 N 240 N 24 N 0.24 N ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wirewound core, an increase in current through the coil decreases the flux density causes no change in flux density reverses the flux lines increases the flux density decreases the flux density causes no change in flux density reverses the flux lines increases the flux density ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials. None of the listed here triangular rectangular circular None of the listed here triangular rectangular circular ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage remains unchanged reverses polarity increases decreases remains unchanged reverses polarity increases decreases ANSWER DOWNLOAD EXAMIANS APP
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