You are Here: Home

# physics watch

1. HI everyone,
Can anyone explain 2 me, quickly and simply, in one sentance, wot resistance is?
Thanx, i need 2 no 4 my gcse cw.
Thanx
HI everyone,
Can anyone explain 2 me, quickly and simply, in one sentance, wot resistance is?
Thanx, i need 2 no 4 my gcse cw.
Thanx
resistence is the constant of proportionality between potential difference and current in an ohmic conductor
3. (Original post by elpaw)
resistence is the constant of proportionality between potential difference and current in an ohmic conductor
I know it's quite simple, but do you think he'll understand that?
4. Or we could say, more simply, components in a circuit resist the flow of current through them. The greater the resistance, the smaller the current that flows for a particulkar voltage.

R = V/I
5. (Original post by elpaw)
resistence is the constant of proportionality between potential difference and current in an ohmic conductor

It depends for what you wish to use it...

Resistance is anything that slow or stops movement or keeps movement from happening.

For a space ship, resistance will counter the thrust of a rocket and keep the rocket from going as fast as it could. Once the ship is out of the Earth's atmosphere and gravitational pull, resistance will drop off considerably.

Examples of resistance to motion on Earth include: air resistance slowing a parachutist's fall; resistance of friction slowing or stopping a book from sliding across a rug or a desk; and gravity resisting something traveling upwards or keeping something on the ground. There is also electrical resistance, which slows or stops electrical current, often transforming that energy into heat or light.
6. Dumbed down simply, Resistance is a measure of the opposition to electric current

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: November 15, 2003
Today on TSR

### 10,400 people unaware they have HIV

Have you been tested?

### University open days

• University of Roehampton
Sat, 17 Nov '18
• Edge Hill University
Faculty of Health and Social Care Undergraduate
Sat, 17 Nov '18
• Bournemouth University