1. List two methods of producing magnetic fields. 
 
Which of the following can produce the magnetic field:
Answer variants:
Static charges
A loop or solenoid carrying current
Insulators
A wire carrying current
Permanent magnet
I.
 
ii.
 
iii.
  
2. Under what conditions is the force on a conductor carrying current within a magnetic field maximized?
 
The force experienced by a current-carrying conductor located in a magnetic field is largest when both are .