Technician · T5
ELECTRICAL PRINCIPLES
The physics underneath everything else: Ohm's law, current, voltage, resistance, and reading the electrical units every other subelement assumes you know.
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50 questions across 4 groups
Group T5A
- T5A01Electrical current is measured in which of the following units?
- T5A02Electrical power is measured in which of the following units?
- T5A03What is the term for the flow of electrons in an electric circuit?
- T5A04What term describes the number of times per second that an alternating current makes a complete cycle?
- T5A05A difference in which of the following causes electron flow?
- T5A06What is the unit of frequency?
- T5A07Why are metals generally good conductors of electricity?
- T5A08Which of the following is a good electrical insulator?
- T5A09Which of the following describes alternating current?
- T5A10Which term describes the rate at which electrical energy is used?
- T5A11What type of current flow is opposed by resistance?
Group T5B
- T5B01How many milliamperes is 1.5 amperes?
- T5B02Which is equal to 1,500,000 hertz?
- T5B03Which is equal to one kilovolt?
- T5B04Which is equal to one microvolt?
- T5B05Which is equal to 500 milliwatts?
- T5B06Which is equal to 3000 milliamperes?
- T5B07Which is equal to 3.525 MHz?
- T5B08Which is equal to 1,000,000 picofarads?
- T5B09Which decibel value most closely represents a power increase from 5 watts to 10 watts?
- T5B10Which decibel value most closely represents a power decrease from 12 watts to 3 watts?
- T5B11Which decibel value represents a power increase from 20 watts to 200 watts?
- T5B12Which is equal to 28400 kHz?
- T5B13Which is equal to 2425 MHz?
Group T5C
- T5C01What describes the ability to store energy in an electric field?
- T5C02What is the unit of capacitance?
- T5C03What describes the ability to store energy in a magnetic field?
- T5C04What is the unit of inductance?
- T5C05What is the unit of impedance?
- T5C06What is the abbreviation for kilohertz?
- T5C07What is the abbreviation for megahertz?
- T5C08What formula is used to calculate electrical power (P) in a DC circuit?
- T5C09How much power is delivered by a voltage of 13.8 volts DC and a current of 10 amperes?
- T5C10How much power is delivered by a voltage of 12 volts DC and a current of 2.5 amperes?
- T5C11How much current is required to deliver 120 watts at a voltage of 12 volts DC?
- T5C12What is impedance?
Group T5D
- T5D01What formula is used to calculate current in a circuit?
- T5D02What formula is used to calculate voltage in a circuit?
- T5D03What formula is used to calculate resistance in a circuit?
- T5D04What is the resistance of a circuit in which a current of 3 amperes flows when connected to 90 volts?
- T5D05What is the resistance of a circuit for which the applied voltage is 12 volts and the current flow is 1.5 amperes?
- T5D06What is the resistance of a circuit that draws 4 amperes from a 12-volt source?
- T5D07What is the current in a circuit with an applied voltage of 120 volts and a resistance of 80 ohms?
- T5D08What is the current through a 100-ohm resistor connected across 200 volts?
- T5D09What is the current through a 24-ohm resistor connected across 240 volts?
- T5D10What is the voltage across a 2-ohm resistor if a current of 0.5 amperes flows through it?
- T5D11What is the voltage across a 10-ohm resistor if a current of 1 ampere flows through it?
- T5D12What is the voltage across a 10-ohm resistor if a current of 2 amperes flows through it?
- T5D13In which type of circuit is the current always the same through all components?
- T5D14In which type of circuit is the voltage always the same across all components?