Electronic Principles Which one of the following statements regarding ac circuits is correct? Current and voltages are in phase through a resistor Current leads the voltage through a resistor Current lags the voltage through a resistor All of these None of these Current and voltages are in phase through a resistor Current leads the voltage through a resistor Current lags the voltage through a resistor All of these None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm? 99.3 Ohm None of these 60 Ohm 250 Ohm 70.7Ohm 99.3 Ohm None of these 60 Ohm 250 Ohm 70.7Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The rotating coil of wire in an electric motor is called the: commutator loop None of these brush armature commutator loop None of these brush armature ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles 1 Microfarad is the same as: 1000 millifarads 1 million farads None of these 1 million picofarads 1 millionth of a picofarad 1000 millifarads 1 million farads None of these 1 million picofarads 1 millionth of a picofarad ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: the core is permitted to move freely within the coil an increase in current through the coil causes no further increase in the mmf changing the polarity of the current in the coil changes the polarity of the magnetic field around the core None of these frequent changes in the direction of current through the coil causes heating effects in the core material the core is permitted to move freely within the coil an increase in current through the coil causes no further increase in the mmf changing the polarity of the current in the coil changes the polarity of the magnetic field around the core None of these frequent changes in the direction of current through the coil causes heating effects in the core material ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When the Q point moves along the load line, the voltage increases when the current Can be any of above None of these Decreases Increases Stays the same Can be any of above None of these Decreases Increases Stays the same ANSWER DOWNLOAD EXAMIANS APP
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