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EEG Board Prep-Technical Sciences Latest Update - Actual Exam Questions and 100% Verified Correct Answers Guaranteed A+
Questions and Answers
• 1.
The smallest particle into which a substance can be divided and still retain its characteristics is the
- A.
- B.
- C.
- D.
- Molecule
Atom
Molecule
Compound
Ion Correct Answer
Explanation A molecule is the smallest particle into which a substance can be divided and still retain its characteristics. Unlike an atom, which is the smallest unit of an element, a molecule consists of two or more atoms bonded together. A compound, on the other hand, is a substance composed of two or more different elements chemically bonded together. An ion is a charged particle that forms when an atom gains or loses electrons. Therefore, a molecule best fits the given description as the smallest particle that retains the characteristics of a substance.
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• 2.
Coulomb's Law deals with 1 / 4
- A.
- B.
- C.
- D.
- Charge
Charge
Volume conduction
Frequency
Phase Correct Answer
Explanation Coulomb's Law deals with the concept of charge. It describes the interaction between charged particles and the force between them. The law states that the force between two charged objects is directly proportional to the product of their charges and inversely proportional to the square of the distance between them. This law is fundamental in understanding the behavior of electrically charged particles and is widely used in various fields of physics and engineering.
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• 3.
The movement of electrons through a conducter is
- A.
- B.
- C.
- D.
- Current
Resistance
Voltage
Current
Capacative reactance Correct Answer
Explanation The movement of electrons through a conductor is referred to as current. Current is the flow of electric 2 / 4
charge, specifically the flow of electrons, in a circuit. It is measured in amperes (A) and is responsible for the transfer of energy and the operation of electrical devices. Resistance refers to the opposition to the flow of current, voltage is the potential difference that drives the current, and capacitive reactance is the opposition to the flow of alternating current in a capacitor.
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• 4.
The ability to store charge is
- A.
- B.
- C.
- D.
- Capacitance
Inductance
Impedance
Condensor
Capacitance Correct Answer
Explanation Capacitance is the ability of a component or system to store electric charge. It is measured in farads (F) and is determined by the physical characteristics of the component, such as the size of the plates and the distance between them in a capacitor. When a voltage is applied across a capacitor, it stores energy in the form of an electric field. Capacitors are commonly used in electronic circuits for various purposes, such as energy storage, filtering, and timing. Therefore, the correct answer for the given question is capacitance.
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• 5.
Which of the following is NOT related to Ohm's Law?
- A.
- 3 / 4
Electromotive force
Impedance
- C.
- D.
- Phase
Voltage
Phase Correct Answer
Explanation Phase is not related to Ohm's Law because Ohm's Law only relates to the relationship between voltage, current, and resistance in a circuit. Phase refers to the relationship in time between two or more waveforms and is not directly related to the electrical quantities described by Ohm's Law.
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• 6.
Input impedance should
- A.
- B.
- C.
- D.
- Be very high
Be very high
Be very low
Equal the common mode rejection ratio
Affect the low frequency activity Correct Answer
Explanation The input impedance should be very high because a high input impedance allows for minimal loading of the signal source, ensuring that the input voltage remains unaffected. This is particularly important in applications where the signal source has a high output impedance or when the input signal is weak. A high input impedance also helps to prevent signal distortion and loss, resulting in accurate and reliable signal processing.
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