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# 3 questions on electric circuits with many components

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1.) What is the potential difference Vad in the circuit of the figure? (Part A 1 figure)

2.) What is the terminal voltage of the 4.00-V battery?

3.)A battery with emf 10.30V and internal resistance 0.50ohms is inserted in the circuit at d, with its negative terminal connected to the negative terminal of the 8.00-V battery. What is the difference of potential Vbc between the terminals of the 4.00-V battery now?

https://brainmass.com/physics/emf/questions-electric-circuits-many-components-206704

#### Solution Preview

1.)What is the potential difference Vad in the circuit of the figure? (Part A 1 figure)
Considering clockwise direction positive, Net EMF in the circuit will be + 8.00 - 4.00 = 4.00 V
The current in the loop will face a total resistance
R = 6.00 + 0.50 + 9.00 + 0.50 + 8.00 = 24.0 
Hence the current in the loop is given by
I = V/R = 4.00/24.0 = 1/6 = 0.167 A
(this current is in clockwise direction)
Starting from point d and going along the loop (clockwise)
Vd + EMF of ...

#### Solution Summary

Three questions on electric circuits with number of resistance and batteries.

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