List of top Physics Questions on Electrical Circuits asked in AP EAPCET

The current \(I\) drawn from the \(5\,\text{V}\) source will be: center

center

In the circuit shown, the current through 8 ohm is same before and after connecting E. The value of E is:

The balancing length of a potentiometer is at 120 cm. On shunting the cell with a resistance of 4 ohm, the balancing point shifts to a length of 60 cm. The internal resistance of the cell is:

The current \( I_{3} \) in the given circuit is:

In the circuit shown in the figure, the current (I) is 6 A when \( R_{3} \) is infinite and current (I) is 9 A when \( R_{3} \) is short circuited. Then the values of \( R_{1} \) and \( R_{2} \) are respectively:

In the part of a circuit shown in figure, determine the current through 20 $\Omega$ resistance, if Potential at 'A' is 30 V, Potential at B = Potential at C = 20 V: figure [H]

figure

If power dissipated in the $9~\Omega$ resistor in the circuit shown is 36 W, the potential difference across the $2~\Omega$ resistor is: figure [H]

figure

The potential difference between points A and B of adjoining figure is

Two cells \(A\) and \(B\) are connected in the secondary circuit of a potentiometer one at a time and the balancing lengths are respectively \(360\ \text{cm}\) and \(420\ \text{cm}\). If emf of \(A\) is \(2.4\ \text{V}\), the emf of the second cell \(B\) is

A \(8\ \Omega\) resistor is connected to a battery that has an internal resistance of \(0.2\ \Omega\). If the voltage across the battery, that is the terminal voltage, is \(10\ \text{V}\), then the emf of the battery is

Three charges \(+5q\), \(Q\) and \(-2q\) are kept along a straight line in the same order such that, \(+5q\) and \(-2q\) charges are at a distance of \(\frac{2r}{3}\) and \(\frac{r}{3}\) from the charge \(Q\) respectively. If the net force on the charge \(-2q\) is zero, then \(Q\) is

The current \(i\) in the circuit given below is

Two wires \(A\) and \(B\) of the same material having lengths \(L_A, L_B\) and radii \(R_A, R_B\) and drift velocities \(V_A, V_B\) respectively carry the same current. If \(L_A=L_B\) and \(R_A=2R_B\), then the value of \[ \left(\frac{V_A}{V_B}\right) \] is: