For the resistor combination, find the equivalent resistance between M and N.

As per what is given, the resistance of the given resistors are = R1, R2, R3, and R4. In order to determine the Equivalent Resistance (R_eq) between M and N, we have to assume the following diagram:

Combination of Resistors

From the figure, R3 and R4 are in parallel combinations. We are already aware that the total resistance can be expressed as follows when two conductors are connected in parallel:

Thus,

1/Rp = 1/R3 + 1/R4

= R4 + R3/R3 x R4

= R3 \(\times\) R4/ R4 + R3

Now, it is clear that R1, R2 and Rp are in series. Hence, the equivalent resistance can be represented as:

⇒ R_eq = R1 + R2 + Rp

= R1 + R2 + R3 x R4/ R4 + R3

Therefore, the equivalent resistance, (R_eq) between points M and N equals R1 + R2 + R3 x R4/ R4 +R3.

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For the resistor combination, find the equivalent resistance between M and N.

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CBSE CLASS XII Related Questions

1. Write any two features of nuclear forces.

2.Four independent waves are expressed as \[ (i)\; y_1=A_1\sin\omega t, \] \[ (ii)\; y_2=A_2\sin 2\omega t, \] \[ (iii)\; y_3=A_3\cos\omega t, \] \[ (iv)\; y_4=A_4\sin\left(\omega t+\frac{\pi}{3}\right) \] The interference between two of these waves is possible in

3.Two heaters rated as \((P_1,V)\) and \((P_2,V)\) are connected in series across a dc source of \(V/2\) volt. The power consumed by the combination will be –

4.A square loop of side 0.50 m is placed in a uniform magnetic field of 0.4 T perpendicular to the plane of the loop. The loop is rotated through an angle of 60° in 0.2 s. The value of emf induced in the loop will be:

5.Two small identical metallic balls having charges \( q \) and \( -2q \) are kept far at a separation \( r \). They are brought in contact and then separated at distance \( \frac{r}{2} \). Compared to the initial force \( F \), they will now:

6.Draw a circuit diagram of a full-wave rectifier using p-n junction diodes. Explain its working and show the input-output waveforms.

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Two heaters rated as \((P_1,V)\) and \((P_2,V)\) are connected in series across a dc source of \(V/2\) volt. The power consumed by the combination will be –

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A square loop of side 0.50 m is placed in a uniform magnetic field of 0.4 T perpendicular to the plane of the loop. The loop is rotated through an angle of 60° in 0.2 s. The value of emf induced in the loop will be:

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Two small identical metallic balls having charges \( q \) and \( -2q \) are kept far at a separation \( r \). They are brought in contact and then separated at distance \( \frac{r}{2} \). Compared to the initial force \( F \), they will now:

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