AP Physics C: E&M
11.5 Compound Direct Current Circuits
11.3 Resistance, Resistivity, and Ohm’s Law
11.2 Simple Circuits
A student is investigating how the resistance of a metal wire changes with temperature. The relationship between the resistance \(R\) of the wire and its temperature \(T\) (in \(^{\circ}\text{C}\)) is modeled by the equation
\[ R(T) = R_0(1 + \alpha T) \]
where \(R_0\) is the resistance of the wire at \(0^{\circ}\text{C}\) and \(\alpha\) is the temperature coefficient of resistivity for the metal.
The student is provided with a sample of the wire coiled around an insulating cylinder, a beaker of water, a hot plate, a thermometer, a variable DC power supply, an ideal ammeter, an ideal voltmeter, and connecting wires.
\[ R(T) = R_0(1 + \alpha T) \]
where \(R_0\) is the resistance of the wire at \(0^{\circ}\text{C}\) and \(\alpha\) is the temperature coefficient of resistivity for the metal.
The student is provided with a sample of the wire coiled around an insulating cylinder, a beaker of water, a hot plate, a thermometer, a variable DC power supply, an ideal ammeter, an ideal voltmeter, and connecting wires.
Similar Questions
Tools for a 5
AP aligned mock tests to help you get a 5.
With grading, adaptive explanations, and more.
Find a Quiz
Find, solve, and grade every AP FRQ ever.
Find an FRQ
Stuck on AP Physics C: E&M? Get unstuck with an AP specialist.1 to 1 tutors who know the exam inside out. Understand weeks of material in a single session.Find a Tutor
Learn AP Physics from scratch, quickly. This is the only course you'll need for the year.
A self-paced course with everything you need to get a 5. Trusted by over 15,000 students and 200+ schools. Learn fast, or we'll refund your purchase, backed by our 100% satisfaction guarantee.
Explore the Course