Ch 28: Induction and InductanceWorksheetSee all chapters
All Chapters
Ch 01: Units & Vectors
Ch 02: 1D Motion (Kinematics)
Ch 03: 2D Motion (Projectile Motion)
Ch 04: Intro to Forces (Dynamics)
Ch 05: Friction, Inclines, Systems
Ch 06: Centripetal Forces & Gravitation
Ch 07: Work & Energy
Ch 08: Conservation of Energy
Ch 09: Momentum & Impulse
Ch 10: Rotational Kinematics
Ch 11: Rotational Inertia & Energy
Ch 12: Torque & Rotational Dynamics
Ch 13: Rotational Equilibrium
Ch 14: Angular Momentum
Ch 15: Periodic Motion (NEW)
Ch 15: Periodic Motion (Oscillations)
Ch 16: Waves & Sound
Ch 17: Fluid Mechanics
Ch 18: Heat and Temperature
Ch 19: Kinetic Theory of Ideal Gasses
Ch 20: The First Law of Thermodynamics
Ch 21: The Second Law of Thermodynamics
Ch 22: Electric Force & Field; Gauss' Law
Ch 23: Electric Potential
Ch 24: Capacitors & Dielectrics
Ch 25: Resistors & DC Circuits
Ch 26: Magnetic Fields and Forces
Ch 27: Sources of Magnetic Field
Ch 28: Induction and Inductance
Ch 29: Alternating Current
Ch 30: Electromagnetic Waves
Ch 31: Geometric Optics
Ch 32: Wave Optics
Ch 34: Special Relativity
Ch 35: Particle-Wave Duality
Ch 36: Atomic Structure
Ch 37: Nuclear Physics
Ch 38: Quantum Mechanics
Sections
Induction Experiments
Magnetic Flux
Faraday's Law
Lenz's Law
Motional EMF
Transformers
Mutual Inductance
Self Inductance
Inductors
LR Circuits
LC Circuits
LRC Circuits

Concept #1: Motional EMF

Practice: A thin rod moves in a perpendicular, unknown magnetic field. If the length of the rod is 10 cm and the induced EMF is 1 V when it moves at 5 m/s, what is the magnitude of the magnetic field?

Additional Problems
A jumbo jet with wing span (distance between the wing tips) of 30 meters is cruising with speed of 2000 km/hour. Suppose that the earth's magnetic field is 0.5 x 10-4 Tesla and is perpendicular plane's wing span. What is the induced emf  between plane's wing tips?
A square, 60-turn coil 10.0 cm on a side with a resistance of 0.920 Ω is placed between the poles of a large electromagnet. The electromagnet produces a constant, uniform magnetic field of 0.600 T directed into the page. As suggested by the figure below the field drops sharply to zero at the edges of the magnet. The coil moves to the right at a constant velocity of 2.00 cm/s. What is the current through the wire coil before the coil reaches the edge of the field? (Express your answer to two significant figures.)
A metal bar is moving toward the bottom of the page, as shown in the sketch. The bar is in a uniform magnetic field B that is directed into the page. Which end of the bar,  a or b, is at higher potential? (a) a (b) b (c) a and b are at the same potential
A conducting rod of length 0.20 m makes slides without friction on conducting metal rails, as shown in the sketch. The apparatus is in a uniform magnetic field that has magnitude B = 0.400 T and that is directed into the page. The resistance of the circuit is a constant R = 5.00 Ω. What magnitude and direction (to the left or to the right) of the external force must be applied to the bar to keep it moving to the right at a constant speed of 12.0 m/s?
A conducting rod of length 0.20 m makes slides without friction on conducting metal rails, as shown in the sketch. The apparatus is in a uniform magnetic field that has magnitude B = 0.400 T and that is directed into the page. The resistance of the circuit is a constant R = 5.00 Ω.In a 3.00 s interval, how much work does the external force do on the bar if the bar is moving with constant velocity 12 m/s?