Electronic Principles Suppose a voltage source has an ideal voltage of 15V and a source resistance of 0.2W. For what values of load resistance will the voltage source appear stiff? 10 Ohm None of these 100 Ohm 20 Ohm 30 Ohm 10 Ohm None of these 100 Ohm 20 Ohm 30 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit? Permeance There is no valid comparison Reluctance Permeability Retentivity Permeance There is no valid comparison Reluctance Permeability Retentivity ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value? 35.4 V None of these 38.74 V 30.4 V 37.4 V 35.4 V None of these 38.74 V 30.4 V 37.4 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: None of these an increase in current through the coil causes no further increase in the mmf frequent changes in the direction of current through the coil causes heating effects in the core material changing the polarity of the current in the coil changes the polarity of the magnetic field around the core the core is permitted to move freely within the coil None of these an increase in current through the coil causes no further increase in the mmf frequent changes in the direction of current through the coil causes heating effects in the core material changing the polarity of the current in the coil changes the polarity of the magnetic field around the core the core is permitted to move freely within the coil ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a statement of Kirchhoffs current law? The algebraic sum of currents entering and leaving a point is equal to zero The current through a resistance is proportional to the value of resistance and the IR drop across it The total current in a parallel circuit is less than the value of the smallest current The algebraic sum of currents in a loop is equal to zero None of these The algebraic sum of currents entering and leaving a point is equal to zero The current through a resistance is proportional to the value of resistance and the IR drop across it The total current in a parallel circuit is less than the value of the smallest current The algebraic sum of currents in a loop is equal to zero None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles To get the Thevenin voltage, you have to None of these Open the load resister Open the voltage source Short the load resistor Short the voltage source None of these Open the load resister Open the voltage source Short the load resistor Short the voltage source ANSWER DOWNLOAD EXAMIANS APP
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