Current Electricity Charging Discharging Of Capacitors Question 451
Question: Two heating coils, one of fine wire and the other of thick wire of the same material and of the same length are connected in series and in parallel. Which of the following statement is correct
Options:
A) In series fine wire liberates more energy while in parallel thick wire will liberate more energy
B) In series fine wire liberates less energy while in parallel thick wire will liberate more energy
C) Both will liberate equally
D) In series the thick wire will liberate more while in parallel it will liberate less energy
Show Answer
Answer:
Correct Answer: A
Solution:
In series, $ P\propto R(\because i $ is same), i.e. in series Fine wire (high R) liberates more energy. In parallel, $ P\propto \frac{1}{R}(V $ is same) i.e. thick wire (less R) liberates more energy.
BETA
