JEE Main & Advanced
Physics
Electrostatics & Capacitance
Question Bank
Critical Thinking
question_answer
In the given circuit if point C is connected to the earth and a potential of \[+\,2000\,V\] is given to the point A, the potential at B is [MP PET 1997; Pb. PET 2003]
A) \[1500\,V\]
B) \[1000\ V\]
C) \[500\ V\]
D) \[400\ V\]
Correct Answer:
C
Solution :
The given circuit can be redrawn as follows \[({{V}_{A}}-{{V}_{B}})=\left( \frac{15}{5+15} \right)\times 2000\] Þ \[{{V}_{A}}-{{V}_{B}}=1500\,V\] Þ \[2000-{{V}_{B}}=1500V\] Þ \[{{V}_{B}}=500V\]