Electrostatics Question 100

Question: A variable condenser is permanently connected to a 100 V battery. If the capacity is changed from 2μF to 10μF , then change in energy is equal to [BHU 2000]

Options:

A) 2×102J

B) 2.5×102J

C) 3.5×102J

D) 4×102J

Show Answer

Answer:

Correct Answer: D

Solution:

ΔU=U2U1=V22(C2C1)

=(100)22(102)×106=4×102J



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक