Electronic Principles Current is The number of free electrons in an atom The force that causes electrons to flow The flow of charged particles through a material An imbalance of electrical charges None of these The number of free electrons in an atom The force that causes electrons to flow The flow of charged particles through a material An imbalance of electrical charges None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately reflects the nature of ac power? The current in an ac circuit changes direction periodically The current in an ac circuit flows in two directions at the same time 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 one direction, but changes value periodically The current in an ac circuit changes direction periodically The current in an ac circuit flows in two directions at the same time 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 one direction, but changes value periodically ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature an intrinsic silicon crystal acts approximately like None of these an insulator a piece of copper wire a conductor a battery None of these an insulator a piece of copper wire a conductor a battery 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? 89.3 ohm 77.7 ohm 224 ohm 88.8 ohm None of these 89.3 ohm 77.7 ohm 224 ohm 88.8 ohm None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles When operating above its resonant frequency, a parallel RLC circuit has the characteristics of a: None of these parallel RL circuit parallel RLC circuit operated above its resonant frequency purely resistive circuit parallel RC circuit None of these parallel RL circuit parallel RLC circuit operated above its resonant frequency purely resistive circuit parallel RC circuit ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the diameter of the coil in an inductor: reduces the value of inductance by one-fourth None of these multiplies the value of inductance by two reduces the value of inductance by one-half multiplies the value of inductance by four reduces the value of inductance by one-fourth None of these multiplies the value of inductance by two reduces the value of inductance by one-half multiplies the value of inductance by four ANSWER DOWNLOAD EXAMIANS APP
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