Current Electricity and Electrical InstrumentHard
Question
In the circuit shown in the figure, if the potential at point A is taken to be zero, the potential at point B is


Options
A.+1 V
B.- 1 V
C.+ 2 V
D.- 2 V
Solution

Applying Kirchhoff voltage law in the circuit is as shown in the figure below

∴ VA + 1 + 2(1) - 2 = VB
0 + 1 = VB (∵ VA = 0(Given))
VB = + 1V
Create a free account to view solution
View Solution FreeTopic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
In fig. battery E is balanced on 55 cm length of potentiometer wire but when a resistance of 10 Ω is connected in p...In the figure shown each resistor is of 20 Ω and the cell has emf 10 volt with negligible internal resistance. Then...Two nonideal batteries are connected in parallel consider the following statements : (A) The equivalent emf is smaller t...When the key K is passed at t =t0, Which of the following statements about the current I in the resister AB of the given...A new electric store house of 1.5 emf of a flash gives a current of 15A, when it is connected with an electric ammeter o...