ELECTRONICS ETA COMPREHENSIVE EXAM 2026/2027
QUESTIONS AND SOLUTIONS RATED A+
✔✔The Wheatstone bridge can be used for precision measurements of: - ✔✔resistance
✔✔The ammeter setting on a multimeter indicates what type of reading? - ✔✔current
✔✔A resistor with color bands of blue, gray and black has a value of
_______________. - ✔✔68 ohms 20%
✔✔A/an _____________ allows current to flow easily. - ✔✔conductor
✔✔A/an _________________ stops the flow of current. - ✔✔insulator
✔✔A component whose value is measured in microfarads is a: - ✔✔capacitor
✔✔A component whose value is measured in ohms is a: - ✔✔resistor
✔✔Switches are rated in maximum ___________ and ______________. (1) -
✔✔current, voltage (1)
✔✔Fuses are rated in maximum _____________ and ______________. - ✔✔current,
voltage
✔✔In an electrical circuit where the voltage and resistance are known, which form of
Ohm's law is used to find the circuit current? - ✔✔I = E/R
✔✔A unit of energy is the: - ✔✔Joule
✔✔Which of the following is commonly used to measure electrical energy consumption?
- ✔✔Kilowatt-Hours
✔✔The current flowing in a circuit is directly proportional to the applied voltage and
inversely proportional to the circuit resistance. This is a statement of: - ✔✔Ohm's Law
✔✔Ohm's Law states that voltage is the product of resistance and current. Using
algebra, how would you determine the resistance? - ✔✔divide the voltage by the current
✔✔Watt's law states that power is the product of current and voltage. Using algebra,
how could the power be determined if resistance and current are known? - ✔✔current
squared times the resistance
QUESTIONS AND SOLUTIONS RATED A+
✔✔The Wheatstone bridge can be used for precision measurements of: - ✔✔resistance
✔✔The ammeter setting on a multimeter indicates what type of reading? - ✔✔current
✔✔A resistor with color bands of blue, gray and black has a value of
_______________. - ✔✔68 ohms 20%
✔✔A/an _____________ allows current to flow easily. - ✔✔conductor
✔✔A/an _________________ stops the flow of current. - ✔✔insulator
✔✔A component whose value is measured in microfarads is a: - ✔✔capacitor
✔✔A component whose value is measured in ohms is a: - ✔✔resistor
✔✔Switches are rated in maximum ___________ and ______________. (1) -
✔✔current, voltage (1)
✔✔Fuses are rated in maximum _____________ and ______________. - ✔✔current,
voltage
✔✔In an electrical circuit where the voltage and resistance are known, which form of
Ohm's law is used to find the circuit current? - ✔✔I = E/R
✔✔A unit of energy is the: - ✔✔Joule
✔✔Which of the following is commonly used to measure electrical energy consumption?
- ✔✔Kilowatt-Hours
✔✔The current flowing in a circuit is directly proportional to the applied voltage and
inversely proportional to the circuit resistance. This is a statement of: - ✔✔Ohm's Law
✔✔Ohm's Law states that voltage is the product of resistance and current. Using
algebra, how would you determine the resistance? - ✔✔divide the voltage by the current
✔✔Watt's law states that power is the product of current and voltage. Using algebra,
how could the power be determined if resistance and current are known? - ✔✔current
squared times the resistance
