Electronic Principles A dielectric material is: a good insulator None of these a good conductor a good conductor of magnetic fields a poor conductor of electrostatic fields a good insulator None of these a good conductor a good conductor of magnetic fields a poor conductor of electrostatic fields ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature 0oC None of these Decreases Increases Stays the same 0oC None of these Decreases Increases Stays the same ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating voltage of a purely capacitive circuit: multiplies the capacitive reactance by 7 None of these cuts the capacitive reactance in half has no effect on the capacitive reactance doubles the amount of capacitive reactance multiplies the capacitive reactance by 7 None of these cuts the capacitive reactance in half has no effect on the capacitive reactance doubles the amount of capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is one important thing transistors do? None of these Rectify line voltage Amplify weak signals Regulate voltage Emit light None of these Rectify line voltage Amplify weak signals Regulate voltage Emit light ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The north pole of a magnet is the one: that would be attracted to the earth's north magnetic pole that has its molecules arranged in a random pattern None of these that would be repelled by the south pole of another magnet that would be attracted to the earth's south magnetic pole that would be attracted to the earth's north magnetic pole that has its molecules arranged in a random pattern None of these that would be repelled by the south pole of another magnet that would be attracted to the earth's south magnetic pole ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for the currents in a parallel RL circuit? The current always has the same amplitude and phase for every part of the circuit The total current is equal to the sum of the currents through the resistance and inductance None of these The total current is less than the sum of the currents through the resistance and inductance The total current leads the total voltage by less than 90 The current always has the same amplitude and phase for every part of the circuit The total current is equal to the sum of the currents through the resistance and inductance None of these The total current is less than the sum of the currents through the resistance and inductance The total current leads the total voltage by less than 90 ANSWER DOWNLOAD EXAMIANS APP
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