Question

thin sheet of which substance permit magnetic field to pass through them
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Answer 1

Answer:

The magnetic-field lines from the magnet pass through the cardboard, the air, and other materials like the craft stick and straw. Materials that allow magnetic lines of force to pass through them are called nonpermeable becausemagnetic fields do not form within them.

Answer 2

The magnetic-field lines from the magnet pass through the cardboard, the air, and other materials like the craft stick and straw. Materials that allow magnetic lines of force to pass through them are called nonpermeable because magnetic fields do not form within them.