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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > In an experiment with a potentiometer, VB = 10 V. R is adjusted to the 50 Ω (figure). A student wanting to measure voltage E1 to a battery (approx. 8 V) finds no null point possible. He then diminishes R to 10Ω and is able to locate the null point ont he last (4th) segment of the potentiometer. find the resistance of the potentiometer wire and potential drop per unit length across the wire in the second case.

In an experiment with a potentiometer, VB = 10 V. R is adjusted to the 50 Ω (figure). A student wanting to measure voltage E1 to a battery (approx. 8 V) finds no null point possible. He then diminishes R to 10Ω and is able to locate the null point ont he last (4th) segment of the potentiometer. find the resistance of the potentiometer wire and potential drop per unit length across the wire in the second case.

B and C after time t will be (given if v1 = v2 = v3) In an experiment with a potentiometer particle B starts with a velocity v2 towards line BC and particle C starts with velocity v3 towards line CA. The displacement of CM of three particle A Three particles of equal masses are placed at the corners of an equilateral triangle as shown in the figure. Now particle A starts with a velocity v1 towards line AB