Electronic Principles Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit? Number of lines of force Magnetomotive force None of these Reluctance Flux density Number of lines of force Magnetomotive force None of these Reluctance Flux density ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a statement of KirchhofFs voltage law? The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it The total voltage in a parallel circuit is less than the value of the smallest voltage The algebraic sum of voltages in a loop is equal to zero None of these The algebraic sum of voltages entering and leaving a point is equal to zero The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it The total voltage in a parallel circuit is less than the value of the smallest voltage The algebraic sum of voltages in a loop is equal to zero None of these The algebraic sum of voltages entering and leaving a point is equal to zero ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The core of an electromagnet is said to be in saturation when: an increase in current through the coil causes no further increase in the mmf the core is permitted to move freely within the coil 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 an increase in current through the coil causes no further increase in the mmf the core is permitted to move freely within the coil 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 Which one of the following is a direct statement of Ohm's law? None of these The total resistance of a parallel circuit is less than the value of the smallest resistance The algebraic sum of voltages in a loop is equal to zero The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it The algebraic sum of currents entering and leaving a point is equal to zero None of these The total resistance of a parallel circuit is less than the value of the smallest resistance The algebraic sum of voltages in a loop is equal to zero The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it The algebraic sum of currents entering and leaving a point is equal to zero ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Reducing the amount of current through an inductor: multiplies the value of inductance by four has no effect on the inductance multiplies the value of inductance by two None of these reduces the value of inductance by one-half multiplies the value of inductance by four has no effect on the inductance multiplies the value of inductance by two None of these reduces the value of inductance by one-half ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total capacitive reactance of a parallel capacitor circuit is: equal to the sum of the individual capacitive-reactance values equal to the source voltage divided by total current equal to the sum of the individual capacitance values less than the capacitance value of the smallest capacitor None of these equal to the sum of the individual capacitive-reactance values equal to the source voltage divided by total current equal to the sum of the individual capacitance values less than the capacitance value of the smallest capacitor None of these ANSWER DOWNLOAD EXAMIANS APP
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