ABRET EEG Exam Review Questions With All Correct Answers (100% Verified)

The basic unit for measuring current flow is c weight b.CouIomb c.VoIt d.Ampere - Ampere The basic unit of resistance is a.Ohm b.CouIomb c.Ampere d.V01t - Ohm Which of the following is not a valid expression of Ohm's law? (in this equation E (electromotive force) is the dame as V (Voltage) Which of the following is not a unit for measuring alternating frequencies? a. Cycles per second b. Volts c. Hertz d. Kilocycles - 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 - stores energy A circuit that allows some frequencies to pass through it, while others are blocked is a a. resistor b. transistor c. filter d. reactor - 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 - 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. 60 Hz interference d. noise - 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 d. sinusoidal - upward Common Mode Rejection is a. the ability of an amplifier to cancel out ECG artifact b. the characteristic of an amplifier that rejects external interference c. is dependent on the sampling rate d. controlled by the 60-cycle notch filter - the characteristic of an amplifier that rejects external interference Which of the following is most attenuated by a low frequency filter of I Hz? a. 0.5 Hz b. 5.0 Hz c. 10.0 Hz d. 0.1 Hz - 0.1 1-Iz Time constant is defined as