Font size
Worksheetsforce on current carrying conductor
Total questions: 35
Worksheet time: 35mins
_______ is a resultant magnetic field produced by the interaction between the magnetic field from a current-carrying conductor and the magnetic field from a permanent magnet
_______ ialah medan magnet paduan yang dihasilkan oleh interaksi antara medan magnet daripada konduktor pembawa arus dengan medan magnet daripada magnet kekal
Catapult field
Medan lastik
Resultant force
Daya paduan
Electromagnetism
Keelektromagnetan
Direct current
Arus terus
Fleming’s left hand rule is used to determine the direction of _______ on a current-carrying conductor.
Petua tangan kiri Fleming digunakan untuk menentukan arah bagi _______ pada konduktor pembawa arus.
Current
Arus
Magnetic field
Medan magnet
Force
Daya
Magnetic flux
Fluks magnet
The following are factors that affect the magnitude of the force acting on a current-carrying conductor EXCEPT
Berikut adalah faktor-faktor yang mempengaruhi magnitud daya yang bertindak atas konduktor pembawa arus KECUALI
Magnitude of the current
Magnitud arus
The strength of the magnetic field
Kekuatan medan magnet
The distance travelled
Jarak yang dilalui
Arranging the conductor parallel to the direction of the magnetic field
Menyusun konduktor secara selari dengan arah bagi medan magnet
Which of the following are ways to increase the magnitude of force acting on a wire?
Yang manakah antara berikut merupakan cara untuk meningkatkan magnitud daya yang bertindak atas wayar?
Increase the cross-sectional area on the conductor
Meningkatkan luas keratan rentas bagi conductor
Increase the current
Meningkatkan arus
Using a stronger magnet
Menggunakan magnet yang lebih kuat
Using a shorter wire
Menggunakan wayar yang pendek
Inside a direct current motor, what is the function of the carbon brush?
Dalam motor arus terus, apakah fungsi bagi berus karbon?
To conduct electricity from the external circuit to the coil
Untuk mengkonduksi elektrik daripada litar luar kepada gegelung
Change the direction of the current in the coil
Mengubah arah bagi arus dalam gegelung
To generate a magnetic field through the coil
Untuk menghasilkan medan magnet melalui gegelung
Allow the commutator to rotate continuously
Membenarkan komutator berputar dengan berterusan
What is the function of the commutator inside of a direct current motor?
Apakah fungsi bagi komutator dalam motor arus terus?
Allow the commutator to rotate continuously
Membenarkan komutator berputar dengan berterusan
Change the direction of the current in the coil
Mengubah arah bagi arus dalam gegelung
To generate a magnetic field through the coil
Untuk menghasilkan medan magnet melalui gegelung
To conduct electricity from the external circuit to the coil
Untuk mengkonduksi elektrik daripada litar luar kepada gegelung
The following are factors that affect the speed of rotation of an electric motor EXCEPT
Berikut adalah faktor yang mempengaruhi kelajuan putaran suatu motor elektrik KECUALI
Type of motor used
Jenis motor yang digunakan
Current in the coil
Arus dalam gegelung
Strength of magnetic field
Kekuatan medan magnet
Coil with turns
Lilitan pada gegelung
What are ways that can be used to increase the speed of rotation of an electric motor?
Apakah cara yang boleh dilakukan untuk meningkatkan kelajuan motor elektrik?
Increase the current in the coil
Meningkatkan arus dalam gegelung
Use a brush motor
Guna motor berberus
Increase the strength of the magnetic field
Meningkatkan kekuatan medan magnet
Use more magnets
Gunakan lebih banyak magnet
Increase the turns on a coil
Menambahkan lilitan pada gegelung
State the traits of a brushless motor.
Nyatakan ciri-ciri bagi motor tanpa berus.
Coil is stationary, magnet rotates
Gegelung pegun, magnet berputar
No sparking at the commutator
Tiada percikan bunga api pada komutator
Soft operational sound
Bunyi yang lemah semasa motor beroperasi
Louder operational noise
Bunyi yang kuat semasa motor beroperasi
Which of the following is NOT a trait of a brushed motor?
Manakah antara berikut BUKAN ciri bagi motor berberus?
Magnet is stationary, coil rotates
Magnet pegun, gegelung berputar
Sparking at the commutator
Terdapat percikan bunga api pada komutator
Friction between the carbon brush and the commutator causes the carbon brush to wear out
Berus karbon bergeser dengan komutator dan mengalami kehausan
Coil is stationary, magnet rotates
Gegelung pegun, magnet berputar
State the difference between a brushed motor and a brushless motor.
Nyatakan perbezaan diantara motor berberus dan motor tanpa berus.
Both motors require force to produce a rotation
Kedua-dua motor menggunakan daya untuk menghasilkan putaran
Brushed motors conduct electricity while brushless motors do not.
Motor berberus mengkonduksikan elektrik manakala motor tanpa berus tidak boleh mengkonduksikan elektrik.
The rotation produced by a brushed motor is faster compared to a brushless motor
Putaran yang dihasilkan oleh motor berberus lebih laju daripada motor tanpa berus
Brushed motors have a louder operational noise compared to brushless motors
Motor berberus mempunyai bunyi yang kuat semasa beroperasi berbanding dengan motor tanpa berus
determine the direction of induced force.
Tentukan arah daya yang teraruh
upward
ke atas
downward
ke bawah
to the right
ke kanan
to the left
ke kiri
determine the direction of induced force.
Tentukan arah daya yang teraruh
upward
ke atas
downward
ke bawah
to the right
ke kanan
to the left
ke kiri
Determine the direction of force produced
Tentukan arah daya yang terhasil
downward
ke bawah
upward
ke atas
rotate anticlockwise
memutar ikut lawan arah jam
rotate clockwise
memutar ikut arah jam
The setup cause the conductor rod to displace by d cm along the track. Which of the following are ways to increase the value of d?
Susunan ini menyebabkan rod konduktor tersesar sebanyak d cm. Yang manakah antara berikut merupakan cara untuk meningkatkan nilai d?
Increase the cross-sectional area on the conductor
Meningkatkan luas keratan rentas bagi conductor
Increase the current
Meningkatkan arus
Using a stronger magnet
Menggunakan magnet yang lebih kuat
Using a shorter wire
Menggunakan wayar yang pendek
Magnetic field produced around a straight conductor due to current in it is given by
Fleming's right hand rule
Right hand grip rule
Clock rule
Fleming's left hand rule
b) based on the diagram above, choose the direction of the forces that act on the sides AB and CD of the coil.
AB:UPWARD;CD:DOWNWARD
AB:DOWNWARD;CD:UPWARD
c) What is the rule that is used to determine the direction of the force that acts on the coil?
(a)
The figure shows the structure of a motor. Which of the following will not affect the speed of rotation of the motor?
The current in the coil
Strength of the magnetic field
The number of turns of wire in the coil
The direction of the current in the coil
Figure 1 and Figure 2 show the structures of a d.c motor and a d.c. motor respectively. State the change of energy that occurs in a motor.
Electrical energy to kinetic energy
Kinetic energy to electrical energy
What does the thumb indicate in flemings left hand rule?
Force
Motion
Current
Magnetic field direction
Name one factor that does not affect the size of a force in on a current-carrying conductor placed in a magnetic field?
Gravity
Magnetic flux density/size of magnetic field
Size of the current
Length of the conductor
Why might a current-carrying wire be placed between a magnetic field?
To increase the current from the interaction of magnetic fields
To increase the voltage from the interaction of magnetic fields
To produce a force from the interaction of magnetic fields
c represented by
direction of magnetic field
direction of rotation
direction of force
direction of magnitude current
What is the functions of commutator?
Reverse the direction of current in the coil every half rotation so that the coil continues to turn in same direction
To contact with the commutator so the current from the battery enters the coil.
Push the brush so it will always contact with the commutator.
Diagram shows a coil placed between the poles of a permanent magnet and is connected to the external circuit.Determine the direction of rotation of the coil when the switch is closed.
Clock wise
Anti Clock wise
Alternately, anticlockwise then clockwise
Alternately, clockwise then anticlockwise
Diagram shows a coil placed between two opposite magnetic poles. An electric current flows through the coil producing a pair of turning force, F.Which diagram shows the correct catapult field ?
Diagram shows a current–carrying conductor placed between the poles of two magnet bars. Which diagram shows the resulting magnetic field ?
Diagram shows a current – carrying conductor in magnetic field. What is the direction of the force that acts on the conductor ?
A
B
C
D
The speed of direct current motor can be reduced by
increasing the amount of current
increasing the strength of magnet
increasing number of turns of coil
increasing the resistance of coil wire
A wire carries a current, creating a magnetic field around itself as shown. The current in the wire is:
Directed to the right
Directed to the left
Equal to the magnetic field
In the same direction as the magnetic field
What does the following represent?
⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗
⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗
⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗
Multiplied by a billion
A piece of modern art
Uniform magnetic field directed into the screen away from you
Uniform magnetic field directed out of your screen at you
The strongest part of a magnet is...
the bars .
the force field.
the poles.
the middle.
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙
A current carrying wire lies between the poles of
two magnets, as shown. What is the direction of the force on the wire?
Into the plane of the paper
Out of the plane of the paper
Towards the N-pole
To the right
