EASY
NDA & NA EE
IMPORTANT
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Which one of the following statements about electric or magnetic fields is not true?

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Important Questions on Magnetic Effects of Electric Current and Magnetism

EASY
NDA & NA EE
IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Physics>Chapter 12 - Magnetic Effects of Electric Current and Magnetism>Practice Exercise>Q 2
The direction of the induced emf during electromagnetic induction is determined by,
EASY
NDA & NA EE
IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Physics>Chapter 12 - Magnetic Effects of Electric Current and Magnetism>Practice Exercise>Q 3
The electromagnetically induced current always flows in such a direction that the action of the magnetic field set-up by it tends to oppose the cause producing it. This is known as
EASY
NDA & NA EE
IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Physics>Chapter 12 - Magnetic Effects of Electric Current and Magnetism>Practice Exercise>Q 4
An artificial satellite with metal surface is moving around the earth in a circular orbit. An induced current flows in the satellite. Which of the following statements is correct?
EASY
NDA & NA EE
IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Physics>Chapter 12 - Magnetic Effects of Electric Current and Magnetism>Practice Exercise>Q 5

The North pole of a magnet is brought near a metallic ring as shown in the figure. The direction of induced current in the ring will be

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EASY
NDA & NA EE
IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Physics>Chapter 12 - Magnetic Effects of Electric Current and Magnetism>Practice Exercise>Q 6
A freely suspended magnetic needle at the magnetic north pole of the earth,
EASY
NDA & NA EE
IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Physics>Chapter 12 - Magnetic Effects of Electric Current and Magnetism>Practice Exercise>Q 7
When a coil of wire is rotated in a uniform magnetic field, a/an,
EASY
NDA & NA EE
IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Physics>Chapter 12 - Magnetic Effects of Electric Current and Magnetism>Practice Exercise>Q 8
In the combined field of a magnet and earth, two null points are located on its axis. The magnet is placed with its axis,
EASY
NDA & NA EE
IMPORTANT
Pathfinder NDA / NA National Defence Academy and Naval Academy Entrance Examination Physics>Chapter 12 - Magnetic Effects of Electric Current and Magnetism>Practice Exercise>Q 9
The soft iron (used as core material) has,