ABRET Board Exam (Latest Update ) Questions With Verified Answers Graded A

The basic unit for measuring current now is A. atomic weight B. Coulomb C. Volt D. Ampere - D. Ampere The basic unit of resistance A. Ohm B. Coulomb C. Ampere D. Volt - A. Ohm Which of the following is not a valid expression of Ohm's law? A. R=EI or (R=VI) B. E=IR or (V=IR) C. EIR or (1=V/R) D. R: Ell or WI) - A. R=EI or (R=VI) Which of the following is not a unit for measuring altemating frequencies A. Cycles per second B. Volts C. Hertz D. Kilocycles - B. Volts Which of the following describes the action of a capacitor? A. opposes changes in current flow B. Converts alternating current to direct current C. Creates a direct current resistance D. Stores energy - D. Stores energy A circuit that allows some frequencies to pass through it, while others are blocked is A. Resistor B. Transistor C. Filter D. Reactor - C. Filter A combination of electronic components designed to increase the power, voltage, or current of a signal A. Amplifier B. Line filter C. Master gain control D. Sensitivity - A. Amplifier A small fluctuating output recorded by the EEG instrument even when there is no input signal is called... A. output voltage B. Linear Distortion C. 60Hz interferance D. Noise - D. Noise The EEG amplifier is designed so that when Input 1 Is more negative than input 2 the deflection will be... A. downward B. upward C. absent