AP Physics C Electricity & Magnetism › Resistors
Resistors are one of the most important basic components of a circuit. With very few exceptions, all circuits have at least one kind of resistor component. An ammeter is a device that measures current flowing through a circuit. Ammeters are always connected to a circuit in series.
Which of the following accurately explains why ammeters must be connected in series within a circuit, and never in parallel?
A battery is measured to have a potential of 5V. When connected to a wire with no resistors or other components, the voltage measured is 4.9V.
Why was the potential of the battery measured differently when the wire was connected?
Resistors are one of the most important basic components of a circuit. With very few exceptions, all circuits have at least one kind of resistor component. An ammeter is a device that measures current flowing through a circuit. Ammeters are always connected to a circuit in series.
Which of the following accurately explains why ammeters must be connected in series within a circuit, and never in parallel?
A battery is measured to have a potential of 5V. When connected to a wire with no resistors or other components, the voltage measured is 4.9V.
Why was the potential of the battery measured differently when the wire was connected?
Three resistors and a battery form the following circuit.
Calculate the equivalent resistance if the resistors have the following values.
Three resistors and a battery form the following circuit.
Calculate the equivalent resistance if the resistors have the following values.