B-fields

Question 1

Hall probe together with either CRO or voltmeter

Answer 1

Measures magnetic flux density.
*State that the probe is placed perpendicularly to the field so as to obtain the maximum reading AND needs to be calibrate first.

Question 2

Flux density meter or Teslameter

Answer 2

Measures magnetic flux density.

*State that the probe is placed perpendicularly to the field so as to obtain the maximum reading.

Question 3

Search coil + CRO

Answer 3

A small coil of copper wire. Can be used to measure changing magnetic field. The induced voltage can be read from a CRO.

Question 4

Helmholtz coils

Answer 4

Consists of two large flat circular coils placed close to each other. When a common current flows through both coils in the same direction, a uniform magnetic field is produced in the space between the coils.

Question 5

Solenoid

Answer 5

Provides a uniform magnetic field in the central region of the coil.