Physics Exam > Physics Videos > Basic Physics for IIT JAM > Ohm's Law and Resistance
Ohm's Law and Resistance Video Lecture | Basic Physics for IIT JAM
|
210 videos|156 docs|94 tests
|
FAQs on Ohm's Law and Resistance Video Lecture - Basic Physics for IIT JAM
| 1. What is Ohm's Law? |  |
Ans. Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to its resistance. Mathematically, it can be represented as I = V/R, where I is the current in amperes (A), V is the voltage in volts (V), and R is the resistance in ohms (Ω).
| 2. How can Ohm's Law be applied to solve electrical circuits? | |
Ans. Ohm's Law is widely used in electrical circuit analysis to determine various parameters. By knowing the voltage across a component and its resistance, we can calculate the current flowing through it using Ohm's Law. Similarly, if the current and resistance are known, the voltage can be calculated. This law allows us to analyze and design circuits by understanding the relationship between voltage, current, and resistance.
| 3. What is resistance and how does it affect electrical circuits? | |
Ans. Resistance is the measure of an object's or material's opposition to the flow of electric current. It determines how much current will flow through a component for a given voltage. Higher resistance restricts the flow of current, causing a decrease in current. Conversely, lower resistance allows a larger current to flow. Resistance also generates heat in a circuit, which is useful in applications such as heating elements.
| 4. How is resistance measured and what are the common units? | |
Ans. Resistance is measured using an instrument called a multimeter. It can be set to measure resistance, and when connected to a component, it provides the resistance value in ohms (Ω). The common units of resistance are kilohms (kΩ), which is equal to 1000 ohms, and megohms (MΩ), which is equal to 1,000,000 ohms. Smaller units like milliohms (mΩ) and microohms (μΩ) are also used for very low resistances.
| 5. How does the temperature affect resistance? | |
Ans. Temperature has a significant impact on resistance. In most conductors, including metals, resistance increases as the temperature increases. This relationship is characterized by the temperature coefficient of resistance. On the other hand, some materials like semiconductors exhibit a decrease in resistance with increasing temperature. Understanding the temperature-resistance relationship is crucial for designing circuits, as it helps predict and compensate for changes in resistance due to temperature variations.
About this Video
|
4.77/5 Rating |
|
Nov 24, 2024 Last updated |
Video Description: Ohm's Law and Resistance for Physics 2024 is part of Basic Physics for IIT JAM preparation.
The notes and questions for Ohm's Law and Resistance have been prepared according to the Physics exam syllabus.
Information about Ohm's Law and Resistance covers all important topics for Physics 2024 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Ohm's Law and Resistance.
Introduction of Ohm's Law and Resistance in English is available as part of our Basic Physics for IIT JAM for Physics & Ohm's Law and Resistance in
Hindi for Basic Physics for IIT JAM course. Download more important topics related with notes, lectures and mock test series for
Physics Exam by signing up for free.
Description
Video Lecture & Questions for Ohm's Law and Resistance Video Lecture | Basic Physics for IIT JAM - Physics full syllabus preparation | Free video for Physics exam to prepare for Basic Physics for IIT JAM.
Information about Ohm's Law and Resistance
Here you can find the meaning of Ohm's Law and Resistance defined & explained in the simplest way possible.
Besides explaining types of Ohm's Law and Resistance theory, EduRev gives you an ample number of questions to practice Ohm's Law and Resistance tests,
examples and also practice Physics tests.
|
210 videos|156 docs|94 tests
|
|
Explore Courses for Physics exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
study material
,shortcuts and tricks
,video lectures
,Ohm's Law and Resistance Video Lecture | Basic Physics for IIT JAM
,MCQs
,Previous Year Questions with Solutions
,Exam
,Extra Questions
,Free
,Sample Paper
,Objective type Questions
,Ohm's Law and Resistance Video Lecture | Basic Physics for IIT JAM
,ppt
,Viva Questions
,practice quizzes
,Important questions
,Ohm's Law and Resistance Video Lecture | Basic Physics for IIT JAM
,Summary
,mock tests for examination
,Semester Notes
,past year papers
;
Study Ohm's Law and Resistance on the App
Students of Physics can study Ohm's Law and Resistance alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Ohm's Law and Resistance,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Ohm's Law and Resistance is prepared as per the latest Physics syllabus.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup