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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Figure shows a potentiometer arrangemeter with RAB = 10Ω and rheostat of variable resistance d. For x=0 null deflection point is found at 20cm from A. For unknown value of x null deflection point was at 30 cm from A, then the value of x is

Figure shows a potentiometer arrangemeter with RAB = 10Ω and rheostat of variable resistance d. For x=0 null deflection point is found at 20cm from A. For unknown value of x null deflection point was at 30 cm from A, then the value of x is

In the circuit shown below the key is pressed at time t = 0. Which of the following statements is are true ?