Electronic Principles Current and voltage are said to be in phase when: their waveforms cross through zero and reach positive and negative peaks at the same time their waveforms are both ac or both dc All of these None of these they have the same amplitude and frequency their waveforms cross through zero and reach positive and negative peaks at the same time their waveforms are both ac or both dc All of these None of these they have the same amplitude and frequency ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The voltage across a 1N4001 is 0.93V when the current is 1A. What is the power dissipation of the diode for these values? 0.93 W 0.93 V 9.3 W 0.041666666666667 None of these 0.93 W 0.93 V 9.3 W 0.041666666666667 None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following is a direct statement of Ohm's law? The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it None of these The algebraic sum of voltages in a loop is equal to zero The algebraic sum of currents entering and leaving a point is equal to zero The total resistance of a parallel circuit is less than the value of the smallest resistance The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it None of these The algebraic sum of voltages in a loop is equal to zero The algebraic sum of currents entering and leaving a point is equal to zero The total resistance of a parallel circuit is less than the value of the smallest resistance ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following principles best describes the basic operation of an electromagnet? Current is induced in a conductor that is moving through a magnetic field Current flowing through a conductor generates a magnetic field Like magnetic poles repel, while unlike poles attract Like magnetic poles attract, while unlike poles repel None of these Current is induced in a conductor that is moving through a magnetic field Current flowing through a conductor generates a magnetic field Like magnetic poles repel, while unlike poles attract Like magnetic poles attract, while unlike poles repel None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A typical light switch in your home is a: momentary push button switch toggle switch knife switch None of these rotary switch momentary push button switch toggle switch knife switch None of these rotary switch ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating? P = E2/R I = P/E R = E2/P None of these P = PR P = E2/R I = P/E R = E2/P None of these P = PR ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS