List of top Physics Questions on Electric Circuit

A uniform metallic wire having resistance 4 $\Omega$ is bent to form a square loop (ABCD). A resistance of 2 $\Omega$ is connected between points B and D and a battery of 2 V is connected across points A and C as shown in the figure. Now the amount of current (I) is: ____.

A resistor is connected to a battery of 12 V emf and internal resistance 2 $\Omega$. If the current in the circuit is 0.6 A, the terminal voltage of the battery is: ____.

Three cells A, B, and C of EMFs 2 V, 3 V, and 5 V respectively are connected in parallel to each other. Their internal resistances are 5 \( \Omega \), 5 \( \Omega \), and 1 \( \Omega \) respectively. Calculate the currents flowing through the cells A, B, and C.

A cell of emf \( E \) and internal resistance \( r \) is connected across a resistor of variable resistance \( R \). Show graphically the variation of
(a) the terminal voltage across the cell,
(b) the current supplied by the cell,
with \( R \) as it is increased from 0 to the maximum value.

The net current flowing in the given circuit is \(\_\_\_\_\_\) A. 

The steady state current in the circuit shown below is :

In the circuit given below, if the equivalent resistance is 10 Ω, find the value of R.

Usage of fuse in a circuit prevents from

3 volt × 4 coulom b =

The area of current-time graph gives

Electric fuse is used in household circuits for the purpose of

In the given circuit, find voltage across 12 Ω resistance.

Which of the following pair of devices measure the same physical quantity?

Find the current drawn from the battery just after the switch is closed

A circuit contains 2 resistance R₁ and R₂ in series. Find the ratio of input voltage to voltage of R₂

Find the current in 8Ω resistance in given circuit,

In the given circuit find the heat produced between A & B :
(given C = 1μF)

A feedback circuit usually employs ..... network

Find \(V_P-V_Q\) in the circuit shown in figure.

Find current (i) in circuit shown in figure.

In the circuit below, the potential difference between A and B is

In the circuit of figure, treat diode as ideal, current in the 4Ω resistor is

Four wires of equal length and of resistance \(3\ \Omega\) each are connected in the form of a square. The equivalent resistance between the diagonally opposite corners of the square is