Electronic Principles Suppose a voltage source has an ideal voltage of 12V and an internal resistance of 0.5W. For what values of load resistance will the voltage source appear stiff? 50 Ohm or more 100 Ohm 6 Ohm 5 Ohm None of these 50 Ohm or more 100 Ohm 6 Ohm 5 Ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: None of these 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 an increase in current through the coil causes no further increase in the mmf None of these 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 an increase in current through the coil causes no further increase in the mmf 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? 20 k Ohm or more None of these 200 k Ohm or more 20 km or less 200 k Ohm or less 20 k Ohm or more None of these 200 k Ohm or more 20 km or less 200 k Ohm or less ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The dielectric constant of a material is a measure of: the amount of opposition to the current flow the amount of voltage it can withstand before breaking down None of these how well the material concentrates magnetic lines of force how well the material concentrates electrostatic lines of force the amount of opposition to the current flow the amount of voltage it can withstand before breaking down None of these how well the material concentrates magnetic lines of force how well the material concentrates electrostatic lines of force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total impedance of a series RLC circuit: always decreases as the applied frequency increases None of these always increases as the applied frequency increases is minimum at the resonant frequency is maximum at the resonant frequency always decreases as the applied frequency increases None of these always increases as the applied frequency increases is minimum at the resonant frequency is maximum at the resonant frequency ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What kind of device is a diode? Linear None of these Bilateral Unipolar Nonlinear Linear None of these Bilateral Unipolar Nonlinear ANSWER DOWNLOAD EXAMIANS APP
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