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Electromagnetism question?

  • Thread starter skg94
  • Start date
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1. Homework Statement

A solenoid lies horizontally with a current balance WXYZ balanced in the solenoid core. Sides WX and ZY are 7.1 cm and side XY is 1.9cm. A current of 6.0A flows through the conductor of the balance. If a 17.6g mass is necessary to balance the current balance what is the magnetic field strength of the solenoid - ANSWER - 1.51T

2. Homework Equations

Fm=Fg
BIL=mg

3. The Attempt at a Solution
i attempted to do them seperately.

b= mg/IL that is literally all i can get from this perphaps if i was given a diagram it would help.

Ive tried substituing l as 7,1 and 1.9, adding the two lengths and subtracting them didnt work
anyone know how to do this?
 

Simon Bridge

Science Advisor
Homework Helper
17,823
1,637
You should be able to sketch a solenoid and a current balance yourself.
The question is asking you about induced currents due to a magnetic field.
 

Simon Bridge

Science Advisor
Homework Helper
17,823
1,637
You should be able to sketch a solenoid and a current balance yourself.
The question is asking you about induced currents due to a magnetic field.
 

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