Subject :NSO Class : Class 5
Padma conducted an experiment as shown below by using different materials.
Padma pulled on the spring balance until the material was separated from the magnet. The readings on the spring balance were recorded as shown in the table below.
What conclusions could Padma make from her experiment?
(i) Soft iron needs the largest force in order to be separated from a magnet.
(ii) Nickel is most easily magnetised while soft iron is least easily magnetised.
(iii) Nickel and cobalt are non-magnetic materials.
(iv) Steel makes the strongest permanent magnet.
A(i) only
B(iii) and (iv) only
C(i), (ii) and (iii) only
D(iv) only
A is the correct answer
Ans 1:
Class : Class 5
Can You Please Explain This concept.. not the question..