Featured in PASCO’s Physics through Inquiry Teacher Guide

Physics through Inquiry Teacher Guide

(PS-2873C)

Features over 30 inquiry based labs covering the core topic areas of mechanics, electricity and magnetism, optics, thermodynamics and more.

Farady's Law of Induction

Lab Summary

Use a voltage sensor to observe the electromotive force generated by passing a magnet through a coil.

Theory

In this experiment, students observe the electromotive force generated by passing a magnet through a coil. Students will explore the relationship between:

  • The number of turns in the coil and the magnitude of the electromotive force.
  • The rate of change of the magnetic flux by virtue of the size of the magnetic field in motion and the magnitude of the electromotive force.
  • The rate of change of the magnetic flux by virtue of the speed of the magnet field in motion and the magnitude of the electromotive force.

Method

Students gain experience measuring a continuously changing voltage for a very short duration. This lab pays particular attention to the scientific method of isolating a variable. In each of three parts, students isolate and change a single variable to determine the effect it has on the outcome.

Sensors / Equipment Used:

PASPORT Voltage-Current Sensor

(PS-2115)

Allows students to safely measure voltage and current simultaneously without overloading the sensor. For use with PASPORT Interfaces.

Materials Used:

No-bounce pad (optional)

200, 400, and 800 turn coils

Magnets, different strengths

Three-finger clamp

Rod stand

Paper ~ 1 sheet

Pen or pencil

Tape ~ 1 roll

Your Bundle Options:

Option 1:

Physics Starter Sensor Bundle

(PS-2923)

A sensor bundle specifically designed to get you started using probeware in your physics lab. Also: perform 26 of the 37 Lab Activities from Physics through Inquiry.

Option 2:

Physics Standard Sensor Bundle

(PS-2931B)

Contains the probeware needed to perform all 37 lab activities in the Physics through Inquiry lab manual.

Interface Required

This experiment may require software and an interface for data collection.