A current of 2 , A flows in an electric circu | vedclass

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

Question

(C) The circuit consists of two parallel branches $PRQ$ and $PSQ$ connected between points $P$ and $Q$.Branch $PRQ$ has a total resistance of $3 \, \O

Vedclass · Accepted Answer

$+4$

Vedclass · Answer

(C) The circuit consists of two parallel branches $PRQ$ and $PSQ$ connected between points $P$ and $Q$.Branch $PRQ$ has a total resistance of $3 \, \Omega + 7 \, \Omega = 10 \, \Omega$.Branch $PSQ$ has a total resistance of $7 \, \Omega + 3 \, \Omega = 10 \, \Omega$.Since the resistances of both branches are equal, the total current of $2 \, A$ splits equally into $1 \, A$ through each branch.For branch $PRQ$, the current $I_1 = 1 \, A$. The potential drop across the $3 \, \Omega$ resistor is $V_P - V_R = I_1 	imes 3 \, \Omega = 1 \, A 	imes 3 \, \Omega = 3 \, V$.For branch $PSQ$, the current $I_2 = 1 \, A$. The potential drop across the $7 \, \Omega$ resistor is $V_P - V_S = I_2 	imes 7 \, \Omega = 1 \, A 	imes 7 \, \Omega = 7 \, V$.We want to find $V_R - V_S$. From the above equations:$V_R = V_P - 3$$V_S = V_P - 7$Subtracting these gives: $V_R - V_S = (V_P - 3) - (V_P - 7) = -3 + 7 = +4 \, V$.

$A$ current of $2 \, A$ flows in an electric circuit as shown in the figure. The potential difference $(V_R - V_S)$, in volts ($V_R$ and $V_S$ are potentials at $R$ and $S$ respectively) is:

Similar Questions

If the line $x+3y=0$ is the tangent at $(0,0)$ to the circle of radius $1$,then the centre of one such circle is

In which activities other than studies should the energy of boys be utilized?

If $\alpha, \beta, \gamma$ are the roots of the equation $x^3+a x^2+b x+c=0$,then $\alpha^{-1}+\beta^{-1}+\gamma^{-1}$ is equal to

$A$ body cools from $62^{\circ}C$ to $50^{\circ}C$ in $10$ minutes and to $42^{\circ}C$ in the next $10$ minutes. The temperature of the surrounding is ........... $^{\circ}C$.

Evaluate $\int_{-2}^1 f(x) dx$,where $f(x)= \begin{cases} 1-2x, & x \leq 0 \\ 1+2x, & x > 0 \end{cases}$

Vedclass Test Series

Exam Paper Generator

Online Exam Module