Question

differentiate between single touch method and double touch method

Answer 1

an objectis magnetised by single magnet is called single touch method.
while,an object is magnetised by double magnets is called double touch method.

Answer 2

The differentiation between the single touch method and double touch method is as follow:

• The magnet is rubbed over the bar (iron bar) in the same direction in the single-touch method.
• In a double-touch method, an iron bar is magnetised by stroking it with two opposite poles of two bar magnets at the same time.

Hence, the answer to the given question is as mentioned above.