Question

True or False type
40. A: The nature of increase/decrease in resistivity of a metal
and insulator are the same.
B: Rheostat used in series in a circuit can make a bulb to
glow with varying brightness.
(a) Both 'A' and 'B' are true statements
(b) Both 'A' and 'B' are false statements
(c) 'A' is true while 'B' is false statements
(d) 'A' is false while 'B' is true statements​

Answer 1

c is the correct ans of this question

Answer 2

Answer:

(d) 'A' is false while 'B' is true statements