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+1 vote
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in Physics by (69.9k points)
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Four cells, each of e.m.f. 1.5V and internal resistance 2Ω. each are connected in parallel to form a battery. The battery is connected to an external resistance of 0.5Ω. and three resistances of 12Ω, 6Ω and 4Ω. in parallel. 

1. Draw the circuit diagram. 

2. Calculate current in main circuit 

3. Calculate current in 4 resistor. 

4. Calculate drop in potential across the terminals of battery. 

1 Answer

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by (72.7k points)
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Best answer

1.circuit diagram is drawn

4. Drop in potential across the terminals of battery E – V = 1r 

= 0.5 × 0.5 = 0.25V

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