SATHEE: Current Electricity 2 Question 28

Current Electricity 2 Question 28

28. In the circuit shown in figure $E, F, G, H$ are cells of emf 2, 1 , 3 and $1 V$ respectively, and their internal resistances are 2, 1, 3 and $1 Ω$ respectively. Calculate

$(1984, 4 M)$

(a) the potential difference between $B$ and $D$ and

(b) the potential difference across the terminals of each cells $G$ and $H$ .

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Solution:

Applying Kirchhoff’s second law in loop $B A D B$

$2 - 2 i_{1} - i_{1} - 1 - 2 (i_{1} - i_{2}) = 0$

Similarly applying Kirchhoff’s second law in loop $B D C B$

$2 (i_{1} - i_{2}) + 3 - 3 i_{2} - i_{2} - 1 = 0$

Solving Eqs. (i) and (ii), we get

(a) Potential difference between $B$ and $D$ .

$\begin{aligned} V_{B} + 2 (i_{1} - i_{2}) & = V_{D} \\ ∴ V_{B} - V_{D} = - 2 (i_{1} - i_{2}) & = \frac{2}{13} V \end{aligned}$

(b)

$\begin{matrix} V_{G} = E_{G} - i_{2} r_{G} = 3 - \frac{6}{13} \times 3 = \frac{21}{13} V \\ V_{H} = E_{H} + i_{2} r_{H} = 1 + \frac{6}{13} \times 1 = \frac{19}{13} V \end{matrix}$

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Current Electricity 2 Question 28

28. In the circuit shown in figure $E, F, G, H$ are cells of emf 2, 1 , 3 and $1 V$ respectively, and their internal resistances are 2, 1, 3 and $1 Ω$ respectively. Calculate

Solution:

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Current Electricity 2 Question 28

28. In the circuit shown in figure E,F,G,H are cells of emf 2, 1 , 3 and 1V respectively, and their internal resistances are 2, 1, 3 and 1Ω respectively. Calculate

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

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28. In the circuit shown in figure $E, F, G, H$ are cells of emf 2, 1 , 3 and $1 V$ respectively, and their internal resistances are 2, 1, 3 and $1 Ω$ respectively. Calculate