Electronic Principles The number of free electrons and holes in intrinsic semiconductor increases when the temperature None of these Decreases Increases 0oC Stays the same None of these Decreases Increases 0oC Stays the same ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements is true for resistance in a parallel circuit? None of these The total resistance is equal to the sum of the individual resistances in a parallel circuit. The total resistance of a parallel circuit is always less than the value of the smallest resistance The total resistance of a parallel circuit is equal to the total voltage The total resistance in a parallel circuit is equal to the average value of the individual resistances None of these The total resistance is equal to the sum of the individual resistances in a parallel circuit. The total resistance of a parallel circuit is always less than the value of the smallest resistance The total resistance of a parallel circuit is equal to the total voltage The total resistance in a parallel circuit is equal to the average value of the individual resistances ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is a free electron? An electron that has twice the amount of charge of a normal electron An electron that has been freed from its parent atom None of these An electron that has no electrical charge An electron that costs nothing An electron that has twice the amount of charge of a normal electron An electron that has been freed from its parent atom None of these An electron that has no electrical charge An electron that costs nothing ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current? None of these 300 mA 200 mA 208 mA 7.8 mA None of these 300 mA 200 mA 208 mA 7.8 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The dielectric constant of a material is a measure of: how well the material concentrates magnetic lines of force the amount of opposition to the current flow the amount of voltage it can withstand before breaking down None of these how well the material concentrates electrostatic lines of force how well the material concentrates magnetic lines of force the amount of opposition to the current flow the amount of voltage it can withstand before breaking down None of these how well the material concentrates electrostatic lines of force ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following statements applies to common auto batteries? Auto batteries are secondary wet-cell batteries Auto batteries are secondary dry-cell batteries Auto batteries are primary wet-cell batteries Auto batteries are primary dry-cell batteries None of these Auto batteries are secondary wet-cell batteries Auto batteries are secondary dry-cell batteries Auto batteries are primary wet-cell batteries Auto batteries are primary dry-cell batteries None of these ANSWER DOWNLOAD EXAMIANS APP
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