In the Wheatstone's bridge (shown in figure) | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) Let the potential at $c$ be $V_c$ and at $d$ be $V_d$. Since the battery is connected across $c$ and $d$,we have $V_c > V_d$.For the branch $c-b-d

Vedclass · Accepted Answer

From $b$ to $a$

Vedclass · Answer

(B) Let the potential at $c$ be $V_c$ and at $d$ be $V_d$. Since the battery is connected across $c$ and $d$,we have $V_c > V_d$.For the branch $c-b-d$,the resistances $X$ and $Y$ are in series. Since $X = Y$,the potential at $b$ is the midpoint potential: $V_b = \frac{V_c + V_d}{2}$.For the branch $c-a-d$,the resistances $A$ and $B$ are in series. The potential at $a$ is given by the potential divider formula: $V_a = V_d + (V_c - V_d) \frac{B}{A + B}$.Since $A > B$,we have $\frac{B}{A + B} Therefore,$V_a Comparing the two,we find $V_b > V_a$. Since current flows from higher potential to lower potential,the current flows from $b$ to $a$.

In the Wheatstone's bridge (shown in figure) $X = Y$ and $A > B$. The direction of the current between $a$ and $b$ will be

Similar Questions

The effective resistance between $A$ and $B$ is ........... $\Omega$.

The Wheatstone bridge shown in the diagram is balanced. If $P_3$ is the power dissipated by $R_3$ and $P_1$ is the power dissipated by $R_1$,then the ratio $\frac{P_3}{P_1}$ is

What is the equivalent resistance between $X$ and $Y$ in the given circuit?

The value of current $I$ in the given current distribution is: (in $A$)

In the given circuit,the current through $AB$ is zero. What will be the value of the unknown resistance $X$ in $\Omega$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module