Electronic Principles What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm? 690 ohm 220 ohm 445 ohm 150 ohm None of these 690 ohm 220 ohm 445 ohm 150 ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A certain electromagnet has 1000 turns of wire. How much current must flow through the coil in order to generate an mmf of 100 ampere-turns? 1000 A None of these 0.41666666666667 0.1 A 100 A 1000 A None of these 0.41666666666667 0.1 A 100 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a current source has an Ideal current of 10 mA and an internal resistance of 20 MW. For what values of load resistance will the current source appear stiff? None of these 20 km or less 20 k Ohm or more 200 k Ohm or less 200 k Ohm or more None of these 20 km or less 20 k Ohm or more 200 k Ohm or less 200 k Ohm or more ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the difference between the kinds of charges for an electron and a proton? An electron has a positive charge and a proton has a negative charge None of these An electron has a negative charge and a proton has a positive charge An electron has a positive charge and a proton has no charge An electron has a negative charge and a proton has no charge An electron has a positive charge and a proton has a negative charge None of these An electron has a negative charge and a proton has a positive charge An electron has a positive charge and a proton has no charge An electron has a negative charge and a proton has no charge ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit? Flux density Magnetomotive force None of these Number of lines of force Reluctance Flux density Magnetomotive force None of these Number of lines of force Reluctance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Current and voltage are said to be in phase when: their waveforms are both ac or both dc All of these None of these they have the same amplitude and frequency their waveforms cross through zero and reach positive and negative peaks at the same time their waveforms are both ac or both dc All of these None of these they have the same amplitude and frequency their waveforms cross through zero and reach positive and negative peaks at the same time ANSWER DOWNLOAD EXAMIANS APP
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