Subject :NSO Class : Class 6
In which of the following circuits will the bulb glow?
A 
B 
C 
D 
Ans 1:
Class : Class 7
(b)would be the only one because its a complete circuit and all the materials required ...........The wire is also of proper material
Ans 2:
Class : Class 6
It can't be (B) because you need wires to connect the circuit.... Hence, the answer is (D).