Question

Which effect of current can be utilised in detecting a current carrying wire concealed in a wall

Answer 1

The magnetic effect of current.
Moving charge(current) produces it's magnetic field, the magnetic field can be detected using a compass.

Hope it helps.

Answer 2

Answer:

The magnetic effect of current.

Moving charge(current) produces it's magnetic field, the magnetic field can be detected using a compass.

Explanation: