An emf is induced in an aeroplane during its ascent and descent in east-west direction due to

The horizontal component of the earth's magnetic field

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The vertical component of the earth's magnetic field

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Both 1 and 2

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None of the above

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Solution

The correct option is A The horizontal component of the earth's magnetic field
From the figure we have.An emf is induced in an aeroplane during its ascent and descent in east-west direction due to the horizontal component of the earth's magnetic field. $H = B_{e} c o s Q$

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An emf is induced in an aeroplane during its ascent and descent in east-west direction due to

The correct option is A The horizontal component of the earth's magnetic fieldFrom the figure we have.An emf is induced in an aeroplane during its ascent and descent in east-west direction due to the horizontal component of the earth's magnetic field. H=BecosQ

The correct option is A The horizontal component of the earth's magnetic field
From the figure we have.An emf is induced in an aeroplane during its ascent and descent in east-west direction due to the horizontal component of the earth's magnetic field. $H = B_{e} c o s Q$