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Byju's Answer

Standard XII

Physics

Finding Average Velocity

A boat is mov...

Question

A boat is moving due east in a region where the earths magnetic field is $5.0 \times 10^{- 5} {N A}^{- 1} m^{- 1}$ due north and horizontal. The boat carries a vertical aerial $2 m$ long. If the speed of boat is $1.50 {m s}^{- 1}$ , the magnitude of the induced emf in the wire of aerial is :

0.75 m V

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0.50 m V

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0.15 m V

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1 m V

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Solution

The correct option is B $0.15 m V$
The emf generated is given by,
$e = B_{h} v l$
or, $e = 1.5 \times 5 \times 10^{- 5} \times 2$
or, $e = 0.15 m V$ is our required answer.

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A boat is moving due east in a region where the earths magnetic field is 5.0×10−5 NA−1m−1 due north and horizontal. The boat carries a vertical aerial 2m long. If the speed of boat is 1.50 ms−1, the magnitude of the induced emf in the wire of aerial is :

The correct option is B 0.15 mVThe emf generated is given by, e=Bhvlor, e=1.5×5×10−5×2or, e=0.15mV is our required answer.

A boat is moving due east in a region where the earths magnetic field is $5.0 \times 10^{- 5} {N A}^{- 1} m^{- 1}$ due north and horizontal. The boat carries a vertical aerial $2 m$ long. If the speed of boat is $1.50 {m s}^{- 1}$ , the magnitude of the induced emf in the wire of aerial is :

The correct option is B $0.15 m V$
The emf generated is given by,
$e = B_{h} v l$
or, $e = 1.5 \times 5 \times 10^{- 5} \times 2$
or, $e = 0.15 m V$ is our required answer.