Physics
Grade-10
Easy
Question
The magnetic field lines inside a long current-carrying solenoid are approximately-
- Parabolic
- Circular
- Elliptical
- Straight
Hint:
Solenoid is an electromagnet that is used to produce a controlled magnetic field through the coil.
The correct answer is: Straight
- When current passes through the wires, a magnetic field is produced. Solenoid behaves like a permanent bar magnet. Whose south and north poles are the ends from where magnetic field lines are coming in and out, respectively.
- The magnetic field lines are parallel to the axis of the long infinite solenoid and the magnetic field does not vary along the length. The magnetic field almost seems to be a straight line.
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The front face of a circular wire-carrying current behaves like a north pole. The direction of current in this face of the circular wire is:
The front face of a circular wire-carrying current behaves like a north pole. The direction of current in this face of the circular wire is:
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The magnetic field strength due to a solenoid carrying current:
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The strength of the magnetic field inside a long current carrying solenoid is:
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An electromagnet is based on:
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Reason: Electromagnet is a permanent magnet.
Read the following statements and choose the correct option:
Assertion: The strength of an electromagnet depends on the magnitude of current flowing through the solenoid.
Reason: Electromagnet is a permanent magnet.
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Match the following with the correct response.
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(2) Compass needle (B) Temporary magnet
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(2) Compass needle (B) Temporary magnet
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Read the following statements and choose the correct option:
Statement A: The magnetic field produced by a current-carrying loop has no poles.
Statement B: Like poles of magnets repel each other.
Read the following statements and choose the correct option:
Statement A: The magnetic field produced by a current-carrying loop has no poles.
Statement B: Like poles of magnets repel each other.
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The magnetic field lines outside a solenoid carrying current:
The magnetic field lines outside a solenoid carrying current:
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The material of the core of an electromagnet is generally:
The material of the core of an electromagnet is generally:
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Electromagnet loses its magnetic property when:
Electromagnet loses its magnetic property when:
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A bar magnet is equivalent to:
A bar magnet is equivalent to:
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The nature of magnetic field line passing through the center of current carrying circular loop is:
The nature of magnetic field line passing through the center of current carrying circular loop is:
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The symbol ⊗ shows that there is:
The symbol ⊗ shows that there is:
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On reversing the direction of current in a wire, the magnetic field produced by it:
On reversing the direction of current in a wire, the magnetic field produced by it:
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