Electronic Principles An audio transformer has a turn ratio of 9, What is its impedance ratio? 6 9 None of these 81 85 6 9 None of these 81 85 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles In a step-down transformer, which is larger? Neither None of these Primary voltage Impossible to say Secondary voltage Neither None of these Primary voltage Impossible to say Secondary voltage ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A dielectric material is: a good conductor None of these a good conductor of magnetic fields a good insulator a poor conductor of electrostatic fields a good conductor None of these a good conductor of magnetic fields a good insulator a poor conductor of electrostatic fields ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The south pole of a magnet is the one: that has its molecules arranged in a random pattern that would be repelled by the north pole of another magnet that would be attracted to the earth's south magnetic pole None of these that would be attracted to the earths north magnetic pole that has its molecules arranged in a random pattern that would be repelled by the north pole of another magnet that would be attracted to the earth's south magnetic pole None of these that would be attracted to the earths north magnetic pole ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A low-pass filter: reduces the level of all frequencies by a significant amount None of these passes higher-frequency signals and reduces lower-frequency signals has no effect on ac signals passes lower-frequency signals and reduces higher-frequency signals reduces the level of all frequencies by a significant amount None of these passes higher-frequency signals and reduces lower-frequency signals has no effect on ac signals passes lower-frequency signals and reduces higher-frequency signals 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? 70.7Ohm 250 Ohm 99.3 Ohm None of these 60 Ohm 70.7Ohm 250 Ohm 99.3 Ohm None of these 60 Ohm ANSWER DOWNLOAD EXAMIANS APP
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