Home
Class 12
PHYSICS
A horizontal straight wire 5 m long exte...

A horizontal straight wire 5 m long extending from east to west is falling with a speed of 10 m/s at right angles to the horizontal component of earth's magnetic field `0.40xx10^(-4)Wb.m^(-2)`.
find the instantaneous value of emf induced in the wire.

Text Solution

Verified by Experts

The wire is along east-west direction, the horizontal component of earth's magnetic field is directed from south to north and the direction of the wire's velocity is vertically downwards. These three are perpendicular to each other.
Hence the instantaneous emf induced across the wire,
`e=vBl=10xx(0.40xx10^(-4))xx5`
`2xx10^(-3)V=2mV`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise WBJEE|5 Videos

  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise JEE Main|1 Videos

  • ELECTROMAGNETIC INDUCTION & ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise INTEGER ANSWER TYPE|6 Videos

  • ELECTRIC POTENTIAL

    CHHAYA PUBLICATION|Exercise CBSE Scanner|13 Videos

  • ELECTROMAGNETIC WAVES

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|17 Videos

Similar Questions

Explore conceptually related problems

A horozontal straight wire 5m long extending from east to west is falling with a speed of 10 ms^-1 at right angles to the horizontal component of earth's magnetic field 0.40xx10^-4 Wb m^-2 . Find the instantaneous value of emf induced in the wire

A horizontal straight wire 5 m long extending from east to west is falling with a speed of 10 m/s at right angles to the horizontal component of earth's magnetic field 0.40xx10^(-4)Wb.m^(-2) . What is the direction of the emf?

A horizontal conducting rod 10 m long extending from east to west is falling with a speed 5.0 m . s^(-1) at right angles to the horizontal component of the Earth's magnetic field, 0.3xx10^(-4)Wb.m^(-2) . Find the instantaneous value of the emf induced in the rod.

A horozontal straight wire 5m long extending from east to west is falling with a speed of 10 ms_-1 at right angles to the horizontal component of earth's magnetic field 0.40xx10_4 Wb m_2 . What is the direction of the emf?

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5 m . s^(-1) , at right angles to the horizontal component of earth's magnetic field, 0.30xx10^(-4)Wb.m^(-2) . what is the emf induced in the wire. Which end of the wire is at higher electrical potential?

A horizontal straight wire 5 m long extending from east to west is falling with a speed of 10 m/s at right angles to the horizontal component of earth's magnetic field 0.40xx10^(-4)Wb.m^(-2) . Which end of the wire will be at higher potential? (Neglect acceleration due to gravity.)

A horozontal straight wire 5m long extending from east to west is falling with a speed of 10 ms_-1 at right angles to the horizontal component of earth's magnetic field 0.40xx10_4 Wb m_2 . Which end of the wire will be at higher potential?

At any place the angle of dip is 30^@ . If the horizontal component of earth’s magnetic field is 0.5 Oe then, What Is the value of earths magnetic field at that point?—

The angle of dip at any place is 30^@ , and the Horizontal component of earths magnetic field is 0.5 T . What will be the value of magneticfield at that place?