1. A circular coil consists of 500 turns of wire. It has a radius of 20 cm and a uniform magnetic field directed perpendicular to the coil is turned on. If the magnetic field changes linearly from 0 T to 15 T in 2.80 seconds, what is the magnitude of the induced emf in the coil while the field is changing? 2. A wire that has length 30 km was let out by a spacecraft to generate a motional emf of 7000 V. The magnitude of the earth's magnetic field at the location of the wire was 5.6 x 10 T. What is the orbital speed of the spacecraft?
1. A circular coil consists of 500 turns of wire. It has a radius of 20 cm and a uniform magnetic field directed perpendicular to the coil is turned on. If the magnetic field changes linearly from 0 T to 15 T in 2.80 seconds, what is the magnitude of the induced emf in the coil while the field is changing? 2. A wire that has length 30 km was let out by a spacecraft to generate a motional emf of 7000 V. The magnitude of the earth's magnetic field at the location of the wire was 5.6 x 10 T. What is the orbital speed of the spacecraft?
Chapter11: Magnetic Forces And Fields
Section: Chapter Questions
Problem 28P: An electron in a TV CRT moves with a speed of 6.0107 m/s, in a direction perpendicular to Earth's...
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