Podcast
Questions and Answers
What is the smallest unit of electric charge generally recognized as useful?
What is the smallest unit of electric charge generally recognized as useful?
- Coulomb (correct)
- Electron
- Ampere
- Millivolt
According to Coulomb's Law, if the distance between two charges is doubled, what happens to the electrostatic force between them?
According to Coulomb's Law, if the distance between two charges is doubled, what happens to the electrostatic force between them?
- It doubles
- It decreases by half
- It quadruples
- It decreases to a quarter (correct)
What characterizes the direction of an electric field created by a positive charge?
What characterizes the direction of an electric field created by a positive charge?
- Toward the charge
- Outward from the charge (correct)
- Parallel to the charge
- Randomly distributed
What happens to like charges when they are brought close together?
What happens to like charges when they are brought close together?
In the context of electrostatic forces, what diminishes rapidly as objects separate?
In the context of electrostatic forces, what diminishes rapidly as objects separate?
What is the unit of electric potential?
What is the unit of electric potential?
What phenomenon did Hans Oersted discover in 1820?
What phenomenon did Hans Oersted discover in 1820?
During charge distribution in a thundercloud, how are the electric charges typically organized?
During charge distribution in a thundercloud, how are the electric charges typically organized?
What happens to a magnetic compass when an electric current is passed through a wire?
What happens to a magnetic compass when an electric current is passed through a wire?
What is the electrostatic force directly proportional to?
What is the electrostatic force directly proportional to?
In the equation for Coulomb's Law, what does the constant 'k' represent?
In the equation for Coulomb's Law, what does the constant 'k' represent?
How can the strength of a magnetic field in a solenoid be increased?
How can the strength of a magnetic field in a solenoid be increased?
What does a charge at rest produce?
What does a charge at rest produce?
How is the magnetic field around a straight wire with a current represented?
How is the magnetic field around a straight wire with a current represented?
What occurs at the center of a loop of wire regarding the magnetic field lines?
What occurs at the center of a loop of wire regarding the magnetic field lines?
What is a coil of wire referred to as?
What is a coil of wire referred to as?
What is the characteristic of copper in relation to magnetism?
What is the characteristic of copper in relation to magnetism?
What material is commonly used to intensify the magnetic field of a coil of wire?
What material is commonly used to intensify the magnetic field of a coil of wire?
What happens to soft iron when it is removed from a magnetic field?
What happens to soft iron when it is removed from a magnetic field?
What is true about the difference between a bar magnet and an electromagnet?
What is true about the difference between a bar magnet and an electromagnet?
Which of the following is not a factor affecting the magnitude of induced current according to Faraday's law?
Which of the following is not a factor affecting the magnitude of induced current according to Faraday's law?
What is the relationship between the magnetic force and distance?
What is the relationship between the magnetic force and distance?
What phenomenon did Michael Faraday discover in relation to electricity?
What phenomenon did Michael Faraday discover in relation to electricity?
What unit is used to measure electric resistance?
What unit is used to measure electric resistance?
What does the Earth's magnetic field behave like?
What does the Earth's magnetic field behave like?
At the equator, the North Pole of a compass points toward which pole?
At the equator, the North Pole of a compass points toward which pole?
What does electromagnetic induction require to function?
What does electromagnetic induction require to function?
What does Ohm's law state about the relationship between voltage, current, and resistance?
What does Ohm's law state about the relationship between voltage, current, and resistance?
In a series circuit, what happens to the current through each circuit element?
In a series circuit, what happens to the current through each circuit element?
Where is the Earth's magnetic pole located in the northern hemisphere?
Where is the Earth's magnetic pole located in the northern hemisphere?
The combined effect of which factors does the induced current's magnitude depend upon?
The combined effect of which factors does the induced current's magnitude depend upon?
What effect does increasing the current in an electromagnet have?
What effect does increasing the current in an electromagnet have?
What effect does tempering by heat have on some ferromagnetic materials?
What effect does tempering by heat have on some ferromagnetic materials?
Which of the following best describes the configuration of a parallel circuit?
Which of the following best describes the configuration of a parallel circuit?
How is the total resistance in a parallel circuit calculated?
How is the total resistance in a parallel circuit calculated?
What is the behavior of the compass in Antarctica?
What is the behavior of the compass in Antarctica?
In the context of electromagnetic induction, what does the term 'velocity of the magnetic field' refer to?
In the context of electromagnetic induction, what does the term 'velocity of the magnetic field' refer to?
When electron flow is inhibited in a circuit, what happens to the resistance?
When electron flow is inhibited in a circuit, what happens to the resistance?
Which statement is true about the sum of voltages in a series circuit?
Which statement is true about the sum of voltages in a series circuit?
Which of the following is a common example of series and parallel circuits?
Which of the following is a common example of series and parallel circuits?
Flashcards are hidden until you start studying
