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? 707 V 700 V None of these 651 V 208 V 707 V 700 V None of these 651 V 208 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be: No more than 10% less than the primary current Twice the primary current None of these One-half the primary current Same as the primary current No more than 10% less than the primary current Twice the primary current None of these One-half the primary current Same as the primary current ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Assuming 100% efficiency, what is the power being applied to the primary winding of the transformer described in the above question? 200 W 1000 W 20 W 100 W None of these 200 W 1000 W 20 W 100 W None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A resistor has a rated value of 100 ohm and a tolerance of 10%. What is its minimum and maximum allowable resistance value? 98 Ohm - 100.1 ohm None of these 99 Ohm - 102 ohm 90 Ohm - 101 ohm 90 Ohm - 110 ohm 98 Ohm - 100.1 ohm None of these 99 Ohm - 102 ohm 90 Ohm - 101 ohm 90 Ohm - 110 ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately reflects the nature of ac power? None of these The current in an ac circuit flows in one direction at a steady level The current in an ac circuit flows in two directions at the same time The current in an ac circuit changes direction periodically The current in an ac circuit flows in one direction, but changes value periodically None of these The current in an ac circuit flows in one direction at a steady level The current in an ac circuit flows in two directions at the same time The current in an ac circuit changes direction periodically The current in an ac circuit flows in one direction, but changes value periodically ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles 1 Microfarad is the same as: None of these 1 million farads 1 millionth of a picofarad 1 million picofarads 1000 millifarads None of these 1 million farads 1 millionth of a picofarad 1 million picofarads 1000 millifarads ANSWER DOWNLOAD EXAMIANS APP
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