Electronic Principles Which one of the following principles best describes the basic operation of an electromagnet? Current flowing through a conductor generates a magnetic field Like magnetic poles attract, while unlike poles repel Current is induced in a conductor that is moving through a magnetic field None of these Like magnetic poles repel, while unlike poles attract Current flowing through a conductor generates a magnetic field Like magnetic poles attract, while unlike poles repel Current is induced in a conductor that is moving through a magnetic field None of these Like magnetic poles repel, while unlike poles attract ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the currents in a series RC circuit? The current always has the same amplitude and phase for every part of the circuit The total current is less than the sum of the currents for the resistance and capacitance The total current is greater than the sum of the currents for the resistance and capacitance The total current is equal to the sum of the currents for the resistance and capacitance None of these The current always has the same amplitude and phase for every part of the circuit The total current is less than the sum of the currents for the resistance and capacitance The total current is greater than the sum of the currents for the resistance and capacitance The total current is equal to the sum of the currents for the resistance and capacitance None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The net charge of a neutral copper atom is 4 -1 None of these 1 4 -1 None of these 1 ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the diameter of the coil in an inductor: reduces the value of inductance by one-half multiplies the value of inductance by two multiplies the value of inductance by four None of these reduces the value of inductance by one-fourth reduces the value of inductance by one-half multiplies the value of inductance by two multiplies the value of inductance by four None of these reduces the value of inductance by one-fourth 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? 90 Ohm - 101 ohm 90 Ohm - 110 ohm None of these 99 Ohm - 102 ohm 98 Ohm - 100.1 ohm 90 Ohm - 101 ohm 90 Ohm - 110 ohm None of these 99 Ohm - 102 ohm 98 Ohm - 100.1 ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The peak value of a sine waveform is: None of these the maximum positive or negative value the amplitude at 90% of the maximum value the amplitude at 70.7% of the maximum value the amplitude at 1.41 times the maximum value None of these the maximum positive or negative value the amplitude at 90% of the maximum value the amplitude at 70.7% of the maximum value the amplitude at 1.41 times the maximum value ANSWER DOWNLOAD EXAMIANS APP
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