MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: 12

                        

what is resistance ?

5 years ago

Answers : (14)

Adarsh
733 Points
							
In electricity resistance is the opposition of a material to the flow of current through it.
5 years ago
Gman Namg
420 Points
							
barricading or opposing the movement of something from its on the way direction
 
approve f useful
5 years ago
Mamali
29 Points
							
It is the property of a conductor to resist the flow of charges through it.
plz approve if useful.
Thanks!!!!! I hpoe it helps !!!!!!!!!!!!!!!!!
5 years ago
Adarsh
733 Points
							
Please approve if my answer is correct. Also i was the first to post the answer.
 
5 years ago
Vasanth Bhaskara
401 Points
							
In Physics resistance is opposition of material to flow of current in it.
5 years ago
Abhiraj Singh Rathore
57 Points
							It is the property of a conductor to resist the flow of charges through it.
						
5 years ago
Smruthi
36 Points
							

A force, such as friction, that operates opposite the direction of motionof a body and tends to prevent or slow down the body's motion.

 
5 years ago
Nikhil kumar
67 Points
							
it is the property of the conductor to obstruct the flow of electricity through it
 
5 years ago
grenade
2061 Points
							
Resistance is a measure of how much an object opposes the passage of electrons. The unit of electrical resistance is the ohm and it is represented by Ω .
plz aprve
5 years ago
SAI SANDY
153 Points
							Resistance is a measure of how much an object opposes the passage of electrons. The unit of electrical resistance is the ohm and it is represented by Ω .plz aprve
						
4 years ago
Prabhakar ch
577 Points
							
Resistance is a measure of how much an object opposes the passage of electrons. The unit of electrical resistance is the ohm and it is represented by Ω .plz aprve
 
4 years ago
Vasanth Bhaskara
401 Points
							
The electrical resistance of an electrical conductor is a measure of the difficulty to pass an electric current through that conductor. The inverse quantity is electrical conductance, and is the ease with which an electric current passes. Electrical resistance shares some conceptual parallels with the notion of mechanical friction. The SI unit of electrical resistance is the ohm (Ω), while electrical conductance is measured insiemens (S).
The resistance (R) of an object is defined as the ratio of voltage across it (V) to current through it (I), while the conductance (G) is the inverse:
R = {V\over I}, \qquad G = {I\over V} = \frac{1}{R}
4 years ago
Aman Kumar
43 Points
							
The resistance of a conductor is the ratio of the potential difference across its ends to the strength of the current flowing through it.
The SI unit of the Resistance is ohm It is represented by Ω.
 
Thanks
Aman Kumar(from askIITians)
4 years ago
dolly bhatia
200 Points
							

Resistance is the opposition which a substance offers to flow of electric current. It is represented by letter R. Standard unit of resistance is the ohm.

When an electric current of one ampere passes through a component across which a potential difference (voltage) of one volt exists, then resistance of that component is one ohm.

In general, when applied voltage is held constant, current in a direct-current (DC) electrical circuit is inversely proportional to the resistance. If resistance is doubled, current is cut in half; if resistance is halved, current is doubles. This rule also holds true for low-frequency alternating-current (AC) systems like household utility circuits. In some Ac circuits, at high frequencies, situation is more complex because some components I these systems can store and release energy and dissipating or converting it.

Electrical resistance per unit length, area or volume of a substance is called ‘resistivity’.  Resistivity figures are specified for copper and aluminum wire, in ohms per kilometer.

Opposition to AC but not to DC, is a property known as ‘reactance’. In an AC circuit, resistance and reactance combine vectorially to yield impedance.

Resistance contrasts with conductance, which is a measure of the ease with which electrical current flows through a substance.   

4 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details