You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

Motional EMF

A horizontal ...

Question

A horizontal straight wire 10m long extending from east to west is falling with a speed of 5.0 m/s at right angles to the horizontal component of earth's magnetic field $0.3 \times 10^{- 4}$ tesla. The emf induced across the ends of wire is

1.5 mV with higher potential at eastern end

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

1.5 mV with higher potential at western end

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0.75 mV with higher potential at eastern end

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Zero

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A 1.5 mV with higher potential at eastern end
$e = B_{H} l u$
$= 0.3 \times 10^{- 4} \times 10 \times 5$
$= 15 \times 10^{- 4}$
$= 1.5 \times 10^{- 3} v$
= 1.5 mV with higher potential at eastern end

Suggest Corrections

Similar questions

Q. A horizontal straight wire 10m long extending from east to west is falling with a speed of 5.0 m/s at right angles to the horizontal component of earth's magnetic field

0.3 \times 10^{- 4}

tesla. The emf induced across the ends of wire is

Q. A

10 m

long horizontal wire extends from North East to South West. It is falling with a speed of

5.0 m/s

, at right angles to the horizontal component of the earth's magnetic field of

0.3 \times 10^{- 4} {Wb/m}^{2}

. The value of the induced emf in wire is:

Q. Write the statement of Lenz's law of electromagnetic induction.
A

2 m

horizontal long straight conducting wire extending from east to west direction is falling with a speed of

5 m / s

perpendicular to the horizontal component of the earth's magnetic field

0.3 \times 10^{- 4}

tesla. Calculate the value of instantaneous emf induced across the ends of wire.

Q. A horizontal straight wire 10 m long extending from east to west is falling with a speed of

5.0 m s^{- 1}

, at right angles to the horizontal component of the earth's magnetic field 0.30

\times 10^{- 4} W B m^{- 2}

.(a) What is the instantaneous value of the emf induced in the wire?(b) What is the direction of the emf?(c) Which end of the wire is at the higher electrical potential?

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0 m s⁻¹, at right angles to the horizontal component of the earth’s magnetic field, 0.30 × 10⁻⁴ Wb m⁻².

(a) What is the instantaneous value of the emf induced in the wire?

(b) What is the direction of the emf?

Join BYJU'S Learning Program

A horizontal straight wire 10m long extending from east to west is falling with a speed of 5.0 m/s at right angles to the horizontal component of earth's magnetic field 0.3×10−4 tesla. The emf induced across the ends of wire is

The correct option is A 1.5 mV with higher potential at eastern ende=BHlu =0.3×10−4×10×5 =15×10−4 =1.5×10−3v = 1.5 mV with higher potential at eastern end

A horizontal straight wire 10m long extending from east to west is falling with a speed of 5.0 m/s at right angles to the horizontal component of earth's magnetic field $0.3 \times 10^{- 4}$ tesla. The emf induced across the ends of wire is

The correct option is A 1.5 mV with higher potential at eastern end
$e = B_{H} l u$
$= 0.3 \times 10^{- 4} \times 10 \times 5$
$= 15 \times 10^{- 4}$
$= 1.5 \times 10^{- 3} v$
= 1.5 mV with higher potential at eastern end