Question
Physics Question on Power in Electric Circuits
You are given resistance wire of length 50 cm and a battery of negligible resistance. In which of the following cases is largest amount of heat generated?
A
When the wire is connected to the battery directly.
B
When the wire is divided into two parts and both the parts are connected to the battery in parallel.
C
When the wire is divided into four parts and all the four parts are connected to the battery in parallel.
D
When only half of the wire is connected to the battery.
Answer
When the wire is divided into four parts and all the four parts are connected to the battery in parallel.
Explanation
Solution
The correct option is (C): When the wire is divided into four parts and all the four parts are connected to the battery in parallel.