Electronic Principles The equivalent of 1 micro A is: one-millionth of an ampere one million amperes None of these 10000A 1000 A one-millionth of an ampere one million amperes None of these 10000A 1000 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A dielectric material is: a poor conductor of electrostatic fields a good conductor of magnetic fields None of these a good conductor a good insulator a poor conductor of electrostatic fields a good conductor of magnetic fields None of these a good conductor a good insulator 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 flows in one direction, but changes value periodically The current in an ac circuit changes direction periodically None of these The current in an ac circuit flows in two directions at the same time 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 None of these The current in an ac circuit flows in two directions at the same time The current in an ac circuit flows in one direction at a steady level ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating frequency of a capacitive circuit: multiplies the capacitive reactance by 6.28 cuts the capacitive reactance in half None of these doubles the amount of a capacitive reactance has no effect on the capacitive reactance multiplies the capacitive reactance by 6.28 cuts the capacitive reactance in half None of these doubles the amount of a capacitive reactance has no effect on the capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles How much current flows through a 0.02-H choke that is operating from a 12-V ac, 100-Hz source? None of these 0.41666666666667 2.02 A 0.955 A 0.02 A None of these 0.41666666666667 2.02 A 0.955 A 0.02 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? 0.2 A 0.4 A 0.6 A 0.3 A None of these 0.2 A 0.4 A 0.6 A 0.3 A None of these ANSWER DOWNLOAD EXAMIANS APP
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