NOCTI Mechatronics 3 Questions and Answers correct

NOCTI Mechatronics 3 Questions and Answers correct The period of a given AC waveform is the time for one: full cycle Every digital multimeter can measure which three basic elements? current, voltage, and resistance If the voltage source supplies 260 volts and the resistance measures 5 ohms, the current is 52 Amps In an AC circuit, if resistance remains the same and voltage is doubled, the current is doubled What aspects of a waveform does an oscilloscope display? voltage versus time The approximate peak-to-peak value of an alternating current signal that measures 240V RMS is? 678.8 volts If all the resistors in the circuit below are the same value, then the current flowing through R1 will be ________ the current flowing through R3. file:///C:/Users/20gderr/Downloads/TY57UD same as What is the direction of electron movement across poles? negative to positive If four 1000 ohm resistors are placed in parallel and then connected to a 100V AC power supply, what is the power dissipated by one of the resistors? 10 Watts A resistor with a value of 23 k ohms +/- 5% will be colored? red, orange, orange, gold When measuring an AC voltage with a digital multimeter, what value is typically shown on the display? RMS value An electronic device runs on a 36-volt supply and takes 11 amps. What is it's power? 396 Watts An ohmmeter is used to measure: resistance What would be the appropriate ohmmeter setting to measure a 4700 ohm resistor? 20k ohm Which electrons are involved in current flow? Valence electrons What is the process in which a magnetic field activates voltage in a coil? Electromagnetic induction What resistance value is yellow, brown, black, gold? 41 ohms, 5% tolerance What is Watt's Law? P=I^2 * R What is the total for a 560 ohm, 1k ohm, and 3.3k ohm resistors in series? 4,860 ohms A 1000 ohm resistor has 20 volts dropped across it, what is the minimum size the resistor should be? 1/2 watt What is a Farad a unit for? capacitance If R3 were to fail open, the current through R4 does what? file:///C:/Users/20gderr/Downloads/P Drops to 0 amps What is the total resistance of the circuit? file:///C:/Users/20gderr/Downloads/P 90 ohms Which of the following is used to measure a current? ammeter Resistance opposes the flow of what? electrons If four 1000 ohm resistors are in parallel, what is their total resistance? 250 ohms If a 500 ohm resistor has 1.5 mA flowing through it, how much voltage is across the resistor? 0.75 Volts Every digital multimeter can measure three basic thing- current, voltage, and __________. resistance The rate at which energy is consumed in a circuit is called In the DC circuit below, if R5 burns open, the total current does what? If four 100 ohm resistors are placed in series and then connected to a 40 V DC power supply, what is the power dissipated by one of the resistors?