Electronic Principles What form of energy is used to maintain an imbalance of charges between the terminals of a battery? Mechanical energy None of these Solar energy Chemical energy Electronical energy Mechanical energy None of these Solar energy Chemical energy Electronical energy ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a free electron? None of these An electron that has been freed from its parent atom An electron that costs nothing An electron that has twice the amount of charge of a normal electron An electron that has no electrical charge None of these An electron that has been freed from its parent atom An electron that costs nothing An electron that has twice the amount of charge of a normal electron An electron that has no electrical charge ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The equivalent of 1 megohms is: 100,000 ohm one million ohms one-millionth of an ohm None of these 1 k ohm 100,000 ohm one million ohms one-millionth of an ohm None of these 1 k ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the number of turns of wire in an inductor: reduces the value of inductance by one-half multiplies the value of inductance by two multiplies the value of inductance by four None of these reduces the value of inductance by one-fourth reduces the value of inductance by one-half multiplies the value of inductance by two multiplies the value of inductance by four None of these reduces the value of inductance by one-fourth ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements best describes magnetic hysteresis? Hysteresis is most apparent when the core material is saturated None of these Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet Hysteresis is most apparent when the core material is saturated None of these Hysteresis is most apparent when a steady amount of current is lowing through the coil of an electromagnet Hysteresis is most apparent when the current through the coil of an electromagnet changes frequently Hysteresis is the amount of magnetic flux that is not confined to the core material of an electromagnet ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage? 36 V 0 V 40 V None of these 60 V 36 V 0 V 40 V None of these 60 V ANSWER DOWNLOAD EXAMIANS APP
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