K.C.S.E Physics Q & A - MODEL 2011PP2QN06

K.C.S.E Physics Q & A - MODEL 2011PP2QN06

​One method of producing a weak magnet is to hold a steel rod in the North South direction and then hammer it continuously for some time. Using the domain theory of magnetism explain how this method works.

ANSWER

• Hammering causes domains/domains to vibrate;
• As they settle, some face North South due to earth’s magnetic field;