An electrical fan rotates when the equipment is switched on . What are the charge carries that convey the current in the fan?
Chapter 14 Electric Current

Quiz
•
Physics
•
12th Grade - University
•
Hard
shanii pok
Used 84+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Electrons only
Negative ions only
Holes and electrons
Lattice atoms and fee electrons
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When a conductor carries a current, the number of conduction electrons that flow in the conductor for 10 s is 3.75 . What is the current that flows in the conductor?
3.8 A
4.2 A
6.0 A
10 A
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A neon lamp is connected to a battery. If a constant current of 1.25 A flows to the lamp, how long will it take for a charge of 15 C to flow through the lamp?
8.3 s
12 s
16 s
19 s
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A conductor of cross-sectional area 0.10 carries a current of 2.5 A. If the number of conduction electrons per cubic metre is . What is the value of drift velocity of the free electrons in the conductor?
1.6
3.9
3.0
6.2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement is true about the drift velocity of the electrons in a current-carrying metallic conductor?
It is directly proportional to the diameter of the conductor.
It is inversely proportional to the current.
It is inversely proportional to the number of conduction electrons per unit volume.
It is directly proportional to the resistance of the conductor if the potential difference across the conductor is kept constant.
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A conductor of length 2.0 m and cross-sectional area 5.0 carries a current of 6.0 A. If the drift velocity of the conduction electrons is 1.5 , what is the number of electrons in the conductor?
2.5
2.9
4.2
5.0
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A tungsten wire of length 1.00 m and cross-sectional area 2.01 carries a current of 5.00 A. If the number of free electrons per unit volume is 4.3 , what is the time taken by an electron to travel from one end of the wire to the other end?
1.81 s
2.77 s
4.51 s
7.25 s
Create a free account and access millions of resources
Similar Resources on Wayground
20 questions
Magnetic Field

Quiz
•
12th Grade
20 questions
Prefixes - Powers of 10

Quiz
•
12th Grade
19 questions
Chapter 16: Magnetic Fields

Quiz
•
12th Grade - University
10 questions
Electric Charges and Fields

Quiz
•
12th Grade
20 questions
basic electrical introduction

Quiz
•
University
13 questions
Magnetism

Quiz
•
12th Grade
10 questions
التقويم الأول للصف الثاني عشر فيزياء 2021/2022

Quiz
•
12th Grade
16 questions
Chapter 18 Alternating Current Circuits

Quiz
•
12th Grade - University
Popular Resources on Wayground
25 questions
Equations of Circles

Quiz
•
10th - 11th Grade
30 questions
Week 5 Memory Builder 1 (Multiplication and Division Facts)

Quiz
•
9th Grade
33 questions
Unit 3 Summative - Summer School: Immune System

Quiz
•
10th Grade
10 questions
Writing and Identifying Ratios Practice

Quiz
•
5th - 6th Grade
36 questions
Prime and Composite Numbers

Quiz
•
5th Grade
14 questions
Exterior and Interior angles of Polygons

Quiz
•
8th Grade
37 questions
Camp Re-cap Week 1 (no regression)

Quiz
•
9th - 12th Grade
46 questions
Biology Semester 1 Review

Quiz
•
10th Grade