Electronic Principles Which is the most widely used semiconductor? None of these All of these Germanium Copper Silicon None of these All of these Germanium Copper Silicon 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? 0.4 A 0.6 A 0.3 A 0.2 A None of these 0.4 A 0.6 A 0.3 A 0.2 A None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The merging of a free electron and a hole is called None of these Lifetime Thermal energy Covalent bonding Recombination None of these Lifetime Thermal energy Covalent bonding Recombination ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements most accurately reflects the nature of ac power? None of these 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 one direction at a steady level 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, but changes value periodically The current in an ac circuit changes direction periodically The current in an ac circuit flows in one direction at a steady level The current in an ac circuit flows in two directions at the same time ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the turns ratio for the transformer specified in the above question? 1.5 None of these 10.738 0.707 0.575 1.5 None of these 10.738 0.707 0.575 ANSWER DOWNLOAD EXAMIANS APP
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? 208 V 651 V 707 V 700 V None of these 208 V 651 V 707 V 700 V None of these ANSWER DOWNLOAD EXAMIANS APP
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