JEE PYQ: Experimental Physics Question 3
Question 3 - 2021 (18 Mar 2021 Shift 2)
Consider a 72 cm long wire AB as shown in the figure. The galvanometer jockey is placed at P on AB at a distance $x$ cm from A. The galvanometer shows zero deflection. The value of $x$, to the nearest integer, is
Show Answer
Answer: 48
Solution
In balanced conditions, $\frac{12}{6} = \frac{x}{72 - x}$. Solving, $x = 48$ cm.