Access free live classes and tests on the app
Download
+
Unacademy
  • Goals
    • AFCAT
    • AP EAMCET
    • Bank Exam
    • BPSC
    • CA Foundation
    • CAPF
    • CAT
    • CBSE Class 11
    • CBSE Class 12
    • CDS
    • CLAT
    • CSIR UGC
    • GATE
    • IIT JAM
    • JEE
    • Karnataka CET
    • Karnataka PSC
    • Kerala PSC
    • MHT CET
    • MPPSC
    • NDA
    • NEET PG
    • NEET UG
    • NTA UGC
    • Railway Exam
    • SSC
    • TS EAMCET
    • UPSC
    • WBPSC
    • CFA
Login Join for Free
avtar
  • ProfileProfile
  • Settings Settings
  • Refer your friendsRefer your friends
  • Sign outSign out
  • Terms & conditions
  • •
  • Privacy policy
  • About
  • •
  • Careers
  • •
  • Blog

© 2023 Sorting Hat Technologies Pvt Ltd

Watch Free Classes
    • Free courses
    • JEE Main 2024
    • JEE Main 2024 Live Paper Discussion
    • JEE Main Rank Predictor 2024
    • JEE Main College Predictor 2024
    • Stream Predictor
    • JEE Main 2024 Free Mock Test
    • Study Materials
    • Notifications
    • JEE Advanced Syllabus
    • JEE Books
    • JEE Main Question Paper
    • JEE Coaching
    • Downloads
    • JEE Notes & Lectures
    • JEE Daily Videos
    • Difference Between
    • Full Forms
    • Important Formulas
    • Exam Tips
JEE Main 2026 Preparation: Question Papers, Solutions, Mock Tests & Strategy Unacademy » JEE Study Material » Physics » Torque and Power

Torque and Power

In this article, we study about torque and power, torque and power formula, what is the relationship between speed torque and power, and more.

Table of Content
  •  

Torque is the rotational equivalent of linear force in physics and mechanics. It’s also known as the rotational force, the moment, or the moment of force.

Power is defined as the amount of energy transferred or converted per unit time. A watt is equivalent to one joule per second in the International System of Units. Power was also known as action in ancient literature. A scalar quantity is referred to as “power.”

Torque

Torque, also known as force moment, is a force’s tendency to rotate the body it is applied to.. The torque is equal to the magnitude of the component of the force vector located in the plane perpendicular to the axis multiplied by the shortest distance between the axis and the direction of the force component with respect to the axis of rotation. The force vector may always be found in a plane parallel to the axis, regardless of its orientation in space.

diagram and equation for calculating torque

Torque Formula

T=F×r×sin

Where, T= torque

F= linear force

R= distance measured from the axis of rotation to where the linear force applied

 sinθ= the angle between F and r.

Sin(theta) has no units in our equation, r has meters (m), and F has Newtons (N) (N). Combining them, we can conclude that a Newton-meter is a unit of torque (Nm).

power

We hear the word power a lot, just like we hear the word energy. In everyday life, it has a variety of meanings. It has a very specific meaning in physics, however. It is a metric that indicates how quickly work is finished.

Power Formula

The rate at which work is completed is referred to as power. It all comes down to the work-to-time ratio. 

Power=Worktime

Or

P=Wt

The Watt is the standard metric unit of power. The equation for power states that a unit of power is equal to a unit of work divided by a unit of time. As a result, a Watt equals a Joule/sec.

What is the relationship between Speed and Torque

When applied to anybody, torque, which is the rotational equivalent 2of linear force, does work. This work has the same dimensions as linear work and is measured in the same units as linear work, namely joules.

The relationship between torque and angular velocity can be used to calculate the amount of work done by a rotating body. The following is a description of this relationship:

P=τ.ω

Where, P= power 

  τ=torque   

 ω=the angular velocity

What is the relationship between Speed and Power

Speed and power have a basic relationship.

P=2πNT60

Where, P=output power

N=speed

T=torque

Conclusion

Torque is a measurement of the force required to rotate an object around an axis. In linear kinematics, force accelerates an object; in rotational kinematics, torque accelerates it. Torque may be measured because it is a vector quantity. The torque vector’s direction is dictated by the force applied on the axis.

Organizations are rife with power and politics. Each concept is, in most situations, necessary and performed with expertise and precision. Unfortunately, authority can lead to conformity among those we interact with, and this conformity can generate corruption. The amount of power you wield is directly proportional to how much others rely on you. If you are regarded as a valued resource within a company, you can use your dependability to make demands and persuade people to comply with your wishes. There are various social dimensions of power to draw on, in addition to having a natural or acquired influence over specific resources.

faq

Frequently Asked Questions

Get answers to the most common queries related to the JEE Examination Preparation.

What criteria do we use to assess power?

Ans : The watt, abbreviated W, is the standard unit for measu...Read full

Jack and Jill ran up a hill during a physics experiment. Despite the fact that Jack is twice as large as Jill, Jill ascends the same distance in half the time. Who puts in the most effort? Who wielded the most clout?

Ans : Jack works harder than Jill. To lift his twice-as-massi...Read full

A body does not perform any functions. Is it hinting that the body is energy-deficient?

Ans : When a body does not do any work, it does not imply tha...Read full

What is the work done by gravity on a satellite that is orbiting the earth? Justify your response.

Ans :  Because the force of gravity works at right angles to...Read full

What are the elements that influence the quality of the work?

Ans : The work done by a force is determined by: ...Read full

Ans : The watt, abbreviated W, is the standard unit for measuring power. James Watt, a Scottish inventor and industrialist, is honored with the unit’s name. In your daily life, you’ve most likely come across the watt. Watts are commonly used to describe the power output of electrical equipment such as light bulbs and stereos.

One watt is equal to one joule of work done per second by definition. So, if P represents power in watts, ∆E represents energy change (number of joules), and ∆t represents time in seconds, then:

P=∆E∆t

Ans : Jack works harder than Jill. To lift his twice-as-massive body up the same flight of steps, Jack must exert double the force. Jill, on the other hand, is just as “powerful” as Jack. Jill completes one-half the work in half the time. The reduction in time compensates for the reduction in work done.

Ans : When a body does not do any work, it does not imply that it is devoid of energy. Although the body has energy, it does not perform any work; for example, a book on a table has potential energy but does not perform any work.

Ans :  Because the force of gravity works at right angles to the direction of motion of the satellite, the work done by it on the satellite is zero. As a result, there is no displacement in the direction of applied force. Only the direction of motion of the I satellite is affected by gravity.

Ans : The work done by a force is determined by:

  1. The force’s magnitude.
  2. The displacement’s magnitude and direction
  3. The angle formed by the interaction of force and displacement.

Crack IIT JEE with Unacademy

Get subscription and access unlimited live and recorded courses from India’s best educators

  • Structured syllabus
  • Daily live classes
  • Ask doubts
  • Tests & practice
Learn more

Notifications

Get all the important information related to the JEE Exam including the process of application, important calendar dates, eligibility criteria, exam centers etc.

Allotment of Examination Centre
JEE Advanced Eligibility Criteria
JEE Advanced Exam Dates
JEE Advanced Exam Pattern 2023
JEE Advanced Syllabus
JEE Application Fee
JEE Application Process
JEE Eligibility Criteria 2023
JEE Exam Language and Centres
JEE Exam Pattern – Check JEE Paper Pattern 2024
JEE Examination Scheme
JEE Main 2024 Admit Card (OUT) – Steps to Download Session 1 Hall Ticket
JEE Main Application Form
JEE Main Eligibility Criteria 2024
JEE Main Exam Dates
JEE Main Exam Pattern
JEE Main Highlights
JEE Main Paper Analysis
JEE Main Question Paper with Solutions and Answer Keys
JEE Main Result 2022 (Out)
JEE Main Revised Dates
JEE Marking Scheme
JEE Preparation Books 2024 – JEE Best Books (Mains and Advanced)
Online Applications for JEE (Main)-2022 Session 2
Reserved Seats
See all

Related articles

Learn more topics related to Physics
Zinc-Carbon Cell

The battery you use every day in your TV remote or torch is made up of cells and is also known as a zinc-carbon cell. Read on to know more.

ZEROTH LAW OF THERMODYNAMICS

Read about the Zeroth law of thermodynamics. Learn about the zeroth law definitions and their examples.

Zener Diode As A Voltage Regulator

Understand the concepts of Zener diodes. Also, learn about the efficiency and limitations of Zener Diode as a Voltage Regulator.

Zener diode as a voltage regulator

zener diode is a very versatile semiconductor that is used for a variety of industrial processes and allows the flow of current in both directions.It can be used as a voltage regulator.

See all
Access more than

10,505+ courses for IIT JEE

Get subscription

Trending Topics

  • JEE Main 2024
  • JEE Main Rank Predictor 2024
  • JEE Main Mock Test 2024
  • JEE Main 2024 Admit Card
  • JEE Advanced Syllabus
  • JEE Preparation Books
  • JEE Notes
  • JEE Advanced Toppers
  • JEE Advanced 2022 Question Paper
  • JEE Advanced 2022 Answer Key
  • JEE Main Question Paper
  • JEE Main Answer key 2022
  • JEE Main Paper Analysis 2022
  • JEE Main Result
  • JEE Exam Pattern
  • JEE Main Eligibility
  • JEE College predictor
combat_iitjee

Related links

  • JEE Study Materials
  • CNG Full Form
  • Dimensional Formula of Pressure
  • Reimer Tiemann Reaction
  • Vector Triple Product
  • Swarts Reaction
  • Focal length of Convex Lens
  • Root mean square velocities
  • Fehling’s solution
testseries_iitjee
Subscribe Now
. document.querySelector('.targetTopBtn').onClick = topFunction; function topFunction() { window.scrollTo({ top: 0, behavior: 'smooth' }) }
Company Logo

Unacademy is India’s largest online learning platform. Download our apps to start learning


Starting your preparation?

Call us and we will answer all your questions about learning on Unacademy

Call +91 8585858585

Company
About usShikshodayaCareers
we're hiring
BlogsPrivacy PolicyTerms and Conditions
Help & support
User GuidelinesSite MapRefund PolicyTakedown PolicyGrievance Redressal
Products
Learner appLearner appEducator appEducator appParent appParent app
Popular goals
IIT JEEUPSCSSCCSIR UGC NETNEET UG
Trending exams
GATECATCANTA UGC NETBank Exams
Study material
UPSC Study MaterialNEET UG Study MaterialCA Foundation Study MaterialJEE Study MaterialSSC Study Material

© 2026 Sorting Hat Technologies Pvt Ltd

Unacademy
  • Goals
    • AFCAT
    • AP EAMCET
    • Bank Exam
    • BPSC
    • CA Foundation
    • CAPF
    • CAT
    • CBSE Class 11
    • CBSE Class 12
    • CDS
    • CLAT
    • CSIR UGC
    • GATE
    • IIT JAM
    • JEE
    • Karnataka CET
    • Karnataka PSC
    • Kerala PSC
    • MHT CET
    • MPPSC
    • NDA
    • NEET PG
    • NEET UG
    • NTA UGC
    • Railway Exam
    • SSC
    • TS EAMCET
    • UPSC
    • WBPSC
    • CFA

Share via

COPY