The voltage sensitivity of a galvanometer is given by-

When the value of $R$ in the balanced Wheatstone bridge, shown in the figure, is increased from $5 \mathrm{\Omega }$ to $7 \mathrm{\Omega }$, the value of $S$ has to be increased by $3 \mathrm{\Omega }$ in order to maintain the balance. What are the initial values of $S?$

In the circuit given below, it is observed that the current $I$ is independent of the value of resistance $r_6$. Then the resistance values satisfy

A Wheatstone bridge is used to determine the value of unknown resistance $X$ by adjusting the variable resistance $Y$ as shown in the figure. For the most precise measurement of $X$, the resistances $P$ and $Q$

In the following circuit, the effective resistance between the points $P$ and $Q$ is

he equivalent resistance of the circuit between $A$ and $B$ is

In the balanced condition, the values of the resistances of the four arms of a Wheatstone bridge are shown in the figure below. The resistance $R_3$ has temperature coefficient $0.0004°{\mathrm{C}}^{-1}$. If the temperature of $R_3$ is increased by $100°\mathrm{C},$ the voltage developed between $S$ and $T$ will be $n \mathrm{V}$. Write the value of $100n$ to the nearest integer.

In the given circuit, it is observed that the current $I$ is independent of the value of resistance $R_5$. Then, the resistance value must satisfy

The current $I$ in the given circuit will be

A battery of $6 \mathrm{V}$ is connected to the circuit as shown below. The current $I$ drawn from the battery is

In the circuit shown $P\ne R$, the reading of the galvanometer is same with switch $S$ open or closed, then

A non-zero current passes through the galvanometer $G$ shown in the circuit when the key $K$ is closed and its value does not change when the key is opened. Then, which of the following statement(s) is/are true?

Current measured by the ammeter $\left(A\right)$ in the reported circuit when no current flows through $10\mathrm{\Omega }$ resistance, will be _____ $A$.

The value of current $I$ as shown in the given circuit diagram is

The value of current ${\mathrm{i}}_1$ flowing from $\mathrm{A}$ to $\mathrm{C}$ in the circuit diagram is :