x Turn on thread page Beta
 You are Here: Home >< Physics

F=BIL experiment question watch

1. Hi guys.

I am doing an experiment measuring the magnetic flux density of a magnetic field by putting a clamped current carrying wire in a magnetic field, where the magnets are on a top pan balance.

I will vary the current and record the mass shown on the balance. Using f=mg i will use this as the force and plot a graph of force against current.

I am trying to explain why the magnets move downwards with a force that is equal and opposite to the force that acts on the wire.

Can anyone read the last paragraph and tell me if it makes sense and if there is anything missing that i should think about adding.

Appreciate the time.
2. It's Newton's 3rd Law.

If the magnetic field exerts a force on the wire, then the wire (or the field around it) exerts an equal and opposite force on the magnetic field or the magnet which is producing it. This force is what you're measuring on the balance.

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: February 4, 2018
Today on TSR

Any tips for freshers...

who are introverts?

More snow?!

Discussions on TSR

• Latest
Poll
Discussions on TSR

• Latest

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE