Question

a train moves in north direction with a speed of 108kmph .Find the amount of induced emf generated between 2 wheels if length of excel is 2m . Assuming that vertical component earths magnetic field is 8.0×10^5 wbpm^2
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Answer 1

Question :

A train moves in north direction with a speed of 108 kmph .Find the amount of induced emf generated between 2 wheels if length of excel is 2m . Assuming that vertical component earths magnetic field is 8.0×10⁵ wbpm²

Given :

• Speed of train = 108 kmph
• Iength of exceI = 2 m b/w 2 wheeIs.
• Magnetic fieId of verticaI component earth = 8.0 × 10⁵ wbpm²

To find :

• Amount of induced emf generated

SoIution :

⇒ Speed = 108 kmph = 108 × (5/18) = 30 mps

⇔ Induced emf = BIV

Where :

• B refers to magnetic fieId component
• I refers to Iength of exceI
• V refers to veIocity/speed

⇒ Induced emf = 8 × 10⁵ × 2 × 30

⇒ Induced emf = 48,000,000 V

⇒ Induced emf = 48,000 mV

∴ Amount of induced emf generated = 48,000 mV

Answer 2

Question :

A train moves in north direction with a speed of 108 kmph .Find the amount of induced emf generated between 2 wheels if length of excel is 2m . Assuming that vertical component earths magnetic field is 8.0×10⁵ wbpm²

Given :

Speed of train = 108 kmph

Iength of exceI = 2 m b/w 2 wheeIs.

Magnetic fieId of verticaI component earth = 8.0 × 10⁵ wbpm²

To find :

Amount of induced emf generated

SoIution :

⇒ Speed = 108 kmph = 108 × (5/18) = 30 mps

⇔ Induced emf = BIV

Where :

B refers to magnetic fieId component

I refers to Iength of exceI

V refers to veIocity/speed

⇒ Induced emf = 8 × 10⁵ × 2 × 30

⇒ Induced emf = 48,000,000 V

⇒ Induced emf = 48,000 mV

∴ Amount of induced emf generated = 48,000 mV