1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
TEA [102]
3 years ago
11

A 50-cm wire placed in an east-west direction is moved horizontally to the north with a speed of 2.0 m/s. the horizontal compone

nt of the earth's magnetic field at that location is 25 μt toward the north and the vertical component is 50μt downward. what is the emf induced between the ends of the wire?

Physics
2 answers:
Butoxors [25]3 years ago
7 0

The emf induced between the ends of the wire is about 50 μV

\texttt{ }

<h3>Further explanation</h3>

Let's recall the induced emf formula for straight wire moving in magnetic field as follows:

\boxed {\varepsilon = B L v}

where:

<em>ε = induced emf ( V )</em>

<em>B = magnetic field strength ( T )</em>

<em>L = length of wire ( m )</em>

<em>v = speed of wire ( m/s )</em>

<em>B, L , v are mutually perpendicular</em>

Let us now tackle the problem!

<u>Given:</u>

speed of wire = v = 2.0 m/s

length of wire = L = 50 cm

magnetic field strength = B = 50 μT → <em>vertical component</em>

<u>Asked:</u>

induced emf = ε = ?

<u>Solution:</u>

\varepsilon = B L v

\varepsilon = (50\ \mu T)(50 \ cm)(2.0 \ m/s)

\varepsilon = (50\ \mu T)(0.5 \ m)(2.0 \ m/s)

\varepsilon = (50\ \mu T)(1.0 \ m^2/s)

\varepsilon = 50\ \mu V

\texttt{ }

<h3>Conclusion:</h3>

The emf induced between the ends of the wire is about 50 μV

\texttt{ }

<h3>Learn more</h3>
  • The three resistors : brainly.com/question/9503202
  • A series circuit : brainly.com/question/1518810
  • Compare and contrast a series and parallel circuit : brainly.com/question/539204

\texttt{ }

<h3>Answer details</h3>

Grade: High School

Subject: Physics

Chapter: Electromagnetism

Strike441 [17]3 years ago
5 0

When a wire is moved inside uniform magnetic field then its free electrons will experience magnetic force on it due to which wire will have potential difference at its ends.

Now here we will have magnetic field due to earth and wire is moving in this constant field so induced emf is given by formula

EMF = v.(B x L)

given that

B = 25\mu Tj - 50\mu Tk

v = 2 m/s j

L = 0.50 m (-i)

now by using the above formula we will have

EMF = 2(j) .(25\mu j - 50\mu k) x (-0.50 i)

EMF = 2(j) .(12.5\mu k + 25\mu j)

EMF = 50 \mu Volts

You might be interested in
The coefficient of linear expansion of steel is 12 × 10-6 K-1 . What is the change in length of a 25-m steel bridge span when it
Westkost [7]

Answer:

0.012-m

Explanation:

∆L = α × Lo × (T-To)

α is the coefficient of linear expansion = 12 × 10-6 K-1

Lo = Initial length = 25-m

∆L = Change in length

(T-To) = 40 K

∆L = 12 × 10-6 × 25 × 40

∆L = 0.012-m

4 0
3 years ago
Inertia is the resistance to change in motion so inertia depends solely on what
Alex Ar [27]
Inertia depends on mass, the more mass the more inertia.
6 0
3 years ago
A diagram of a closed circuit with power source on the left labeled 30 V, a resistor on the top labeled 2 Ohms, a resistor on th
larisa86 [58]

Answer:

5

Explanation:

i dont have one

3 0
2 years ago
Read 2 more answers
Is hydrogen balloon element mixture or compound
andrezito [222]

Answer:

compound

Explanation:

5 0
2 years ago
Faça uma redação sobre '' A luta das mulheres brasileiras pelos seus direitos ''
Kazeer [188]
DO YOU HAVE THE ENGLISH TRANSLATION?
5 0
3 years ago
Other questions:
  • The metric unit for temperature is _______________.<br> a. fahrenheitb. celsiusc. secondd. liter
    8·1 answer
  • Which is not an element? Water , Arsenic, sodium, Aluminum
    8·2 answers
  • Which of the following is NOT a method that Sigmund Freud used while trying to understand his patients' unconscious processes?
    8·1 answer
  • What nutrient does your body need the most? A. protein B. vitamins C. water D. carbohydrates
    11·2 answers
  • A track athlete does two and a half laps from the starting line on a track of normal shape and size. The best way to describe th
    14·1 answer
  • Who was the first president of the united states​
    12·2 answers
  • The length of a soild of a metallic cube at 20°C is 5•0cm. Given that the linear expansivity of the metal is 4×^-5k^-1. Find the
    7·1 answer
  • Which of the physical variables listed below will change when you change the area of the capacitor plates (while keeping the bat
    14·1 answer
  • What would happen if I removed the battery from the circuit?
    7·1 answer
  • is it possible that the philippines can solely rely from geothermal energy? state your opinion why or why not?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!