These devices are laminated to reduce eddy currents, and hysteresis losses occur each time the magnetic field is reversed.
The hum associated with these devices is due to a rapid expansion and contraction with each magnetic cycle known as magnetostriction. The audio type of this device is used to block radio frequency interference and the EMF of one of these devices can be increased by operating it at a higher frequency. These devices are laminated to reduce eddy currents, and hysteresis losses occur each time the magnetic field is reversed. For 10 points, name these electrical devices used to step up and down voltage.
The hum associated with these devices is due to a rapid expansion and contraction with each magnetic cycle known as magnetostriction.
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