Conversion of galvanometer into voltmeter | Moving charges & magnetism | Physics | Khan Academy
58.4 هزار بار بازدید -
4 سال پیش
-
To convert a moving coil
To convert a moving coil galvanometer to a voltmeter, we add a high series resistance, but why?.
The high resistance causes most of the voltage to drop across it, leaving a small voltage drop across the galvanometer.
This also ends up making the voltmeter have very high resistance. Ideal voltmeters have infinite resistance.
Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
Donate here: https://www.khanacademy.org/donate?ut...
Created by Mahesh Shenoy
The high resistance causes most of the voltage to drop across it, leaving a small voltage drop across the galvanometer.
This also ends up making the voltmeter have very high resistance. Ideal voltmeters have infinite resistance.
Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
Donate here: https://www.khanacademy.org/donate?ut...
Created by Mahesh Shenoy
4 سال پیش
در تاریخ 1399/06/12 منتشر شده
است.
58,424
بـار بازدید شده