Question

Mark ‘T’ if the statement is true and ‘F’ if it is false:
(a) To make a battery of two cells, the negative terminal of one cell is connected to the negative terminal of the other cell. (T/F)
(b) When the electric current through the fuse exceeds a certain limit, the fuse wire melts and breaks. (T/F)
(c) An electromagnet does not attract a piece of iron. (T/F)
(d) An electric bell has an electromagnet. (T/F)
NCERT Solutions for Class 7th Science Chapter 14 Motion and Time Page 171 Exercise Question 9

Answer 1

a)False b)True c)False d)True

Answer 2

1. false 
2. true
3 false
4 true ..

hope its help u..