Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 23: Q19PE (page 860)

At what speed must the sliding rod in Figure 23.11move to produce an emf of 1.00 Vin a 1.50 Tfield, given the rod’s length is 30.0 cm?

Short Answer

Expert verified

The obtained speed is: 2.22 m/s.

Step by step solution

01

Given Data

Length of rod is 30.0 cm.

Induced emf is 1.00 V

magnetic field is 1.50 T

02

Define Electromagnetic Induction

The phenomenon in which there is a induction of electromotive force in the coil, either due to the motion of conductor in external magnetic field or due to the motion of magnet near a coil, is termed as Electromotive force. The induced emf exists only till the magnetic field keeps changing for the coil.

03

Evaluating the speed

The induced emf for this case has the equation,

ε=BLv……………………(1)

Then, the equation (1) can be rearranged for speed will be:

v=εBL……………………(2)

Substituting the given values in equation (2), we get:

v=1.0V1.5T×0.3m

Therefore, the speed is: 2.22 m/s .

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

(a) If the emf of a coil rotating in a magnetic field is zero at \(t = 0\) , and increases to its first peak at, \(t = 0.100ms\) what is the angular velocity of the coil?

(b) At what time will its next maximum occur?

(c) What is the period of the output?

(d) When is the output first one-fourth of its maximum?

(e) When is it next one-fourth of its maximum?

Suppose you have a supply of inductors ranging from 1.00 nHto 10.0 H, and capacitors ranging from 0.100 pFto 0.100 F. What is the range of resonant frequencies that can be achieved from combinations of a single inductor and a single capacitor?

Why are ordinary circuit breakers and fuses ineffective in preventing shocks?

A large power plant generates electricity at 12.0 kV. Its old transformer once converted the voltage to 335 kV. The secondary of this transformer is being replaced so that its output can be 750 kV for more efficient cross-country transmission on upgraded transmission lines.

(a) What is the ratio of turns in the new secondary compared with the old secondary?

(b) What is the ratio of new current output to old output (at 335 kV) for the same power? (c) If the upgraded transmission lines have the same resistance, what is the ratio of new line power loss to old?

(a) What is the voltage output of a transformer used for rechargeable flashlight batteries, if its primary has\(500\)turns, its secondary\(4\)turns, and the input voltage is\(120{\rm{ }}V\)?

(b) What input current is required to produce a\(4.00A\)output?

(c) What is the power input?
See all solutions

Recommended explanations on Physics Textbooks

Kinematics Physics

Read Explanation

Geometrical and Physical Optics

Read Explanation

Fields in Physics

Read Explanation

Magnetism and Electromagnetic Induction

Read Explanation

Electromagnetism

Read Explanation

Force

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free