Electronic Principles Which one of the following statements best describes magnetic hysteresis? Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet Hysteresis is most apparent when the core material is saturated Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet None of these Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet Hysteresis is most apparent when the core material is saturated Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet None of these Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When the collector current increases, what does the current gain do? stays the same decreases increases None of these any of the above stays the same decreases increases None of these any of the above ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the number of turns of wire in an inductor: reduces the value of inductance by one-half reduces the value of inductance by one-fourth None of these multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-half reduces the value of inductance by one-fourth None of these multiplies the value of inductance by four multiplies the value of inductance by two ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A loadstone is: a temporary magnet a natural magnet an artificial magnet a paramagnetic alloy None of these a temporary magnet a natural magnet an artificial magnet a paramagnetic alloy None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 megohms is: 100,000 ohm 1 k ohm one million ohms one-millionth of an ohm None of these 100,000 ohm 1 k ohm one million ohms one-millionth of an ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current? 3.75 mA None of these 3.2 mA 0.05 mA 13 mA 3.75 mA None of these 3.2 mA 0.05 mA 13 mA ANSWER DOWNLOAD EXAMIANS APP
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