Electronic Principles What form of energy is used to maintain an imbalance of charges between the terminals of a battery? Mechanical energy Chemical energy None of these Solar energy Electronical energy Mechanical energy Chemical energy None of these Solar energy Electronical energy 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 None of these 0.6 A 0.2 A 0.3 A 0.4 A None of these 0.6 A 0.2 A 0.3 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The basic unit of measurement for resistance is the: volt watt None of these ohm ampere volt watt None of these ohm ampere ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What is the barrier potential of a silicon diode at room temperature? 2 m V per degree Celsius 1 V 0.3V None of these 0.7V 2 m V per degree Celsius 1 V 0.3V None of these 0.7V ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current? P = I2R P = E2/R None of these I = P/E P = IE P = I2R P = E2/R None of these I = P/E P = IE ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The total capacitance of a series capacitor circuit is: equal to the source voltage divided by total current equal to the sun of the individual capacitive-reactance values equal to the sum of the individual capacitance values None of these less than the value of the smallest capacitor equal to the source voltage divided by total current equal to the sun of the individual capacitive-reactance values equal to the sum of the individual capacitance values None of these less than the value of the smallest capacitor ANSWER DOWNLOAD EXAMIANS APP