Electronic Principles A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage? 700 V 208 V 651 V None of these 707 V 700 V 208 V 651 V None of these 707 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The dielectric constant of a material is a measure of: the amount of voltage it can withstand before breaking down how well the material concentrates magnetic lines of force the amount of opposition to the current flow None of these how well the material concentrates electrostatic lines of force the amount of voltage it can withstand before breaking down how well the material concentrates magnetic lines of force the amount of opposition to the current flow None of these how well the material concentrates electrostatic lines of force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles As the temperature increases, the current gain can be any of the above decreases contant increases None of these can be any of the above decreases contant increases None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A high-pass filter: passes lower-frequency signals and reduces higher-frequency signals increases 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 increases 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 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A farad is defined as the amount of capacitance necessary for: None of these storing 1 V for 1 second changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing dissipating 1 W of power causing an ac phase shift greater than 90 degree None of these storing 1 V for 1 second changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing dissipating 1 W of power causing an ac phase shift greater than 90 degree ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles If the current gain is 200 and the collector current is 100 mA, the base current is 2 mA 0.083333333333333 200 A 0.5 mA None of these 2 mA 0.083333333333333 200 A 0.5 mA None of these ANSWER DOWNLOAD EXAMIANS APP
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