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WorksheetsElectromagnet Part 1
Total questions: 10
Worksheet time: 39mins
Which of the following does not influence the strentgh of electromagnet?
Number of turns of wire
Magnitude of current flow in the wire
Type of core
Material used for insulator of the wire
Diagram above shows a solenoid. Which of the following rules may be used to determine the direction of the current in the coil?
Fleming’s Left Hand Rule
Fleming’s Right Hand Rule
Right Hand Screw Rule
Right Hand Grip Rule
Diagram above shows the apparatus used to study the effect of an electromagnet. Which change will increase the number of paper clips attracted to the iron rod?
Use a thinner wire to form the coils
Use a non-insulated wire to form the coils
Reduce the number of coils
Increase the magnitude of current
Diagram above shows the apparatus used to set-up to observe the magnetic field due to a current in a coil.
Diagram above shows a conductor wire placed in a magnetic field. When the switch is on, the conductor wire initially moves towars..
W
X
Y
Z
Diagram above shows a current-carrying conductor in a magnetic field. What is the direction of the force that acts on the conductor?
J
K
L
M
Diagram above shows an electric motor. The magnitude of force F increses when..
The number of turns of the wire coil decreases
The magnitude of the electric current decreases
The magnitude of magnetic fields decreases
The resistance of the wire coil decreases
Diagram above shows a left hand which represents the Fleming’s Left Hand Rule. X represents ....
Motion
Electric current
Magnetic field
Potential difference
Diagram above shows a conductor placed inside a magnetic field. What is the direction of motion of the conductor when the current flows ?
W
X
Y
Z
Diagram above shows a straight conductor placed in a magnetic field. Both of the soft springs extend when the switch is on. Which change will decrease the extension of the springs?
Use a stronger magnet
Use a thicker conductor
Increase the number of batteries
Increase the distance between magnets
