
EMF Theory

Quiz
•
Engineering
•
University
•
Easy
GLENN JUNGGAI
Used 2+ times
FREE Resource
22 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Describe Lorentz Force Law
Force acting on a moving point charge, q in the presence of electro-magnetic fields
F = qV x B
F = q(E + V x B)
States that the magnetic flux density near a long , conductor is directly proportional to the current in the conductor and inversely proportional to the distance from the conductor
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Describe Ampere's Law
The magnetic force on a stationary charge or a charge moving in parallel to the magnetic field is zero
The magnetic field in space around an electric current is proportional to the current which produces it
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
What is Gauss' Law?
Enclosed charge is net charge
Used to find magnetic field
Used to find electric field
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
-An effective way of producing a magnetic field that is constant at its center
-Made of many loops of wire, packed closely together
The descriptions above best describes SOLENOID or TOROID?
SOLENOID
TOROID
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
-Bent into the shaped of a doughnut
-Uses Ampere's Law to find magnetic field in its interior points
The descriptions above best describes SOLENOID or TOROID?
SOLENOID
TOROID
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Propose the solution for designing a supercapacitor with large capacitance.
Use larger surface area for the plates
Decrease the distance between plates
Increase the input voltage
Choose materials with larger dielectric constant
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Describe the nature of EM waves in terms of the electric and magnetic fields that make up the waves.
Since a changing electric field produces a magnetic field, and a changing magnetic field produces an electric field, once sinusoidal fields are created they can propagate on their own
These propagating fields are called electromagnetic waves
When electric field changes, magnetic field equals to 0
The electric and magnetic waves are perpendicular to each other as they propagate through vacuum
Create a free account and access millions of resources
Similar Resources on Wayground
18 questions
EMJ43003 AC MOTOR

Quiz
•
University
20 questions
Electro2 MSW3

Quiz
•
University
20 questions
Sensors and Transducers Quiz

Quiz
•
University
22 questions
ELECTRICAL ENGINEERS PRE-BOARD EXAMINATION AUGUST 2013

Quiz
•
University
22 questions
Relativity

Quiz
•
10th Grade - University
20 questions
Logo Thon Quiz Competition

Quiz
•
University
20 questions
Electrical Science Principles Cat 3

Quiz
•
University
20 questions
Electro2 MSW2

Quiz
•
University
Popular Resources on Wayground
55 questions
CHS Student Handbook 25-26

Quiz
•
9th Grade
18 questions
Writing Launch Day 1

Lesson
•
3rd Grade
10 questions
Chaffey

Quiz
•
9th - 12th Grade
15 questions
PRIDE

Quiz
•
6th - 8th Grade
40 questions
Algebra Review Topics

Quiz
•
9th - 12th Grade
22 questions
6-8 Digital Citizenship Review

Quiz
•
6th - 8th Grade
10 questions
Nouns, nouns, nouns

Quiz
•
3rd Grade
10 questions
Lab Safety Procedures and Guidelines

Interactive video
•
6th - 10th Grade