How is voltage measured?
Voltage is measured using a voltmeter, which is connected to two points in a circuit to determine the electric potential difference between them.
How do you calculate the force between charged particles in a vacuum?
Use Coulomb’s Law, F = k*(q1*q2)/r², where F is the force, k is Coulomb’s constant, q1 and q2 are the charges, and r is the distance between them.
What is an electrostatic precipitator?
An electrostatic precipitator removes particles from exhaust gases using electrostatic attraction, significantly reducing air pollution in industries.
What is a potentiometer?
A potentiometer is a three-terminal variable resistor used for voltage division and signal scaling in electronic circuits, allowing adjustable output.
What is the principle of conservation of charge?
The principle of conservation of charge states that the total electric charge in an isolated system remains constant over time.
What is the purpose of a resistor in a circuit?
The purpose of a resistor in a circuit is to control the flow of electric current, ensuring the proper functioning of other components.
What is a variable resistor?
A variable resistor is an adjustable electronic component that controls current flow in a circuit by altering its resistance, used in various applications.
What is a voltmeter?
A voltmeter is an instrument that measures voltage or potential difference between two points in an electrical circuit, available in analog or digital forms.
How do you use a multimeter to measure voltage, current, and resistance in a circuit?
A multimeter measures voltage, current, and resistance by connecting probes to a circuit and selecting the appropriate setting on the device.
What is a galvanometer?
A galvanometer is a sensitive instrument used to measure small electric currents or detect the presence of a current by utilizing magnetic fields.
