Draw an electric circuit with a cell, key, ammeter, a resistor (series) of 2 ohm with combination of two resistors (4 ohm each) in parallel and a voltmeter across parallel combination.

As per the question, Will the potential difference across the 2 Ω resistor be similar to the one across the parallel combination with 4Ω resistors? The following reasons can be illustrated:

Step 1: Circuit Diagram

The circuit diagram with a cell, key, ammeter, resistors in series (2 $\Omega$) with a combination of two resistors can be represented as:

Electric Circuit Diagram

Step 2: Solution

Effective resistance of the parallel connected combination of two resistors is:

R_eff = ${4\ \times\ 4} \over {4\ +\ 4}$

⇒ R_eff = ${{16} \over 8}$

⇒ R_eff = 2Ω

Hence, because of the 2 Ω resistor and the parallel combination of two 4 Ω resistors are connected in series, the flow of current will be in the same direction. Due to this reason, the potential difference that occurs between the two-ohm resistors is similar to the potential difference between two resistors jointly.

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Draw an electric circuit with a cell, key, ammeter, a resistor (series) of 2 ohm with combination of two resistors (4 ohm each) in parallel and a voltmeter across parallel combination.

Step 1: Circuit Diagram

Step 2: Solution

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CBSE CLASS XII Related Questions

2.
The resistance of a metal wire at \( 20^\circ \text{C} \) is \( 1.05 \, \Omega \) and at \( 100^\circ \text{C} \) is \( 1.38 \, \Omega \). Determine the temperature coefficient of resistivity of this metal.

4.
Derive an expression for the capacitance of a parallel plate capacitor of plate area A and plate separation d with air present between the plates.

5.
Write two advantages of reflecting telescope over refracting telescope.

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Draw an electric circuit with a cell, key, ammeter, a resistor (series) of 2 ohm with combination of two resistors (4 ohm each) in parallel and a voltmeter across parallel combination.

Step 1: Circuit Diagram

Step 2: Solution

Related Questions

CBSE CLASS XII Related Questions

2. The resistance of a metal wire at \( 20^\circ \text{C} \) is \( 1.05 \, \Omega \) and at \( 100^\circ \text{C} \) is \( 1.38 \, \Omega \). Determine the temperature coefficient of resistivity of this metal.

4.Derive an expression for the capacitance of a parallel plate capacitor of plate area A and plate separation d with air present between the plates.

5.Write two advantages of reflecting telescope over refracting telescope.

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

2.
The resistance of a metal wire at \( 20^\circ \text{C} \) is \( 1.05 \, \Omega \) and at \( 100^\circ \text{C} \) is \( 1.38 \, \Omega \). Determine the temperature coefficient of resistivity of this metal.

4.
Derive an expression for the capacitance of a parallel plate capacitor of plate area A and plate separation d with air present between the plates.

5.
Write two advantages of reflecting telescope over refracting telescope.