Electronic Principles What is the smallest number of polarities required for current flow? Three - negative, positive and neutral terminals One - a negative terminal None of these Two - a negative terminal and a positive terminal Four - two negative and two positive Three - negative, positive and neutral terminals One - a negative terminal None of these Two - a negative terminal and a positive terminal Four - two negative and two positive ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a capacitive circuit: cuts the capacitive reactance in half None of these multiplies the capacitive reactance by 6.28 has no effect on the capacitive reactance doubles the amount of a capacitive reactance cuts the capacitive reactance in half None of these multiplies the capacitive reactance by 6.28 has no effect on the capacitive reactance doubles the amount of a capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A circuit has two different voltage sources that are connected in a series-aiding form. If the sources are rated at 6 V and 9 V, what is the total source voltage? 7.5 V 16 V 8 V None of these 15 V 7.5 V 16 V 8 V None of these 15 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The dielectric constant of a material is a measure of: 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 None of these the amount of voltage it can withstand before breaking down 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 None of these the amount of voltage it can withstand before breaking down ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The north pole of a magnet is the one: that would be attracted to the earth's north magnetic pole that would be repelled by the south pole of another magnet that would be attracted to the earth's south magnetic pole that has its molecules arranged in a random pattern None of these that would be attracted to the earth's north magnetic pole that would be repelled by the south pole of another magnet that would be attracted to the earth's south magnetic pole that has its molecules arranged in a random pattern None of these 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? Reluctance Magnetomotive force Number of lines of force None of these Flux density Reluctance Magnetomotive force Number of lines of force None of these Flux density ANSWER DOWNLOAD EXAMIANS APP
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