Electronic Principles Reducing the amount of current through an inductor: multiplies the value of inductance by four has no effect on the inductance None of these reduces the value of inductance by one-half multiplies the value of inductance by two multiplies the value of inductance by four has no effect on the inductance None of these reduces the value of inductance by one-half multiplies the value of inductance by two ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding? 600 V None of these 0.4 V 24 V 4.73 600 V None of these 0.4 V 24 V 4.73 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles One henry of inductance is defined as: the amount of inductance required to change the frequency of a current by 1 Hz the amount of counter emf required to reduce a current to 1 A the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second None of these the number of turns of wire in an inductor multiplied by the amount of current flowing through it the amount of inductance required to change the frequency of a current by 1 Hz the amount of counter emf required to reduce a current to 1 A the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second None of these the number of turns of wire in an inductor multiplied by the amount of current flowing through it ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the diameter of the coil in an inductor: multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-fourth reduces the value of inductance by one-half None of these multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-fourth reduces the value of inductance by one-half None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a step-down transformer, which is larger? Impossible to say Secondary voltage Neither None of these Primary voltage Impossible to say Secondary voltage Neither None of these Primary voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is one important thing transistors do? Regulate voltage None of these Amplify weak signals Rectify line voltage Emit light Regulate voltage None of these Amplify weak signals Rectify line voltage Emit light ANSWER DOWNLOAD EXAMIANS APP
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