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nda physics quiz magnetic effects of electronic current
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nda physics quiz magnetic effects of electronic current
Quiz
Question 1. The magnetic field around a current-carrying conductor was discovered by:
Faraday
Maxwell
Hans Christian Oersted
Coulomb
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Question 2. The SI unit of magnetic field strength is:
Weber
Tesla
Henry
Gauss
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Question 3. The direction of the magnetic field around a straight conductor carrying current can be determined by:
Left-hand rule
Fleming’s right-hand rule
Right-hand thumb rule
Fleming’s left-hand rule
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Question 4. A current-carrying solenoid behaves like:
A bar magnet
An electric dipole
A capacitor
A galvanometer
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Question 5. The device that converts electrical energy into mechanical energy using magnetic effects is:
Transformer
Generator
Electric motor
Battery
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Question 6. The strength of the magnetic field inside a solenoid increases if:
Current is decreased
Number of turns is reduced
Number of turns per unit length is increased
Length of the solenoid is increased
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Question 7. The north pole of a current-carrying coil can be identified by:
Fleming’s right-hand rule
Corkscrew rule
Right-hand thumb rule
Ampere’s law
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Question 8. Which of the following will produce a magnetic field?
A moving charge
A stationary charge
A neutral particle
A vacuum
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Question 9. The core of an electromagnet is made of:
Copper
Aluminium
Soft iron
Zinc
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Question 10. The force experienced by a current-carrying conductor in a magnetic field is maximum when:
It is parallel to the magnetic field
It is perpendicular to the magnetic field
It makes 45° with the magnetic field
There is no magnetic field
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