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 651 V 208 V None of these 707 V 700 V 651 V 208 V None of these 707 V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Determine the resistance value and tolerance of a resistor that has the following color bands; first band is red, second band is red, third band is orange, and the fourth band is gold 220 Ohm, 5% 22,000 Ohm, 5% 220 Ohm, 10% None of these 22, 000 Ohm, 10% 220 Ohm, 5% 22,000 Ohm, 5% 220 Ohm, 10% None of these 22, 000 Ohm, 10% ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with an inductor that has a reactance of 200 W? None of these 89.3 ohm 88.8 ohm 77.7 ohm 224 ohm None of these 89.3 ohm 88.8 ohm 77.7 ohm 224 ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a capacitive circuit: None of these doubles the amount of a capacitive reactance multiplies the capacitive reactance by 6.28 has no effect on the capacitive reactance cuts the capacitive reactance in half None of these doubles the amount of a capacitive reactance multiplies the capacitive reactance by 6.28 has no effect on the capacitive reactance cuts the capacitive reactance in half ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following principles best describes the basic operation of an electromagnet? Like magnetic poles attract, while unlike poles repel None of these Like magnetic poles repel, while unlike poles attract Current is induced in a conductor that is moving through a magnetic field Current flowing through a conductor generates a magnetic field Like magnetic poles attract, while unlike poles repel None of these Like magnetic poles repel, while unlike poles attract Current is induced in a conductor that is moving through a magnetic field Current flowing through a conductor generates a magnetic field ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly determines the amount of current flowing through a resistor when you know the value of the resistor and the voltage drop across it? I = E/R E = PR None of these E = I2R I = ER I = E/R E = PR None of these E = I2R I = ER ANSWER DOWNLOAD EXAMIANS APP
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