Question

For the circuit shown in the figure are R1= 5 ohm R2 = 9 ohm E1 = 8 volt, E2 = 6 volt and E3 = 4 volt find the potential of the point A.​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

Potential at point A is equal to 2 volts

Explanation:

starting from battery E₃ (4 Volts)

Negative terminal is GROUNDED

thus potential at negative end is 0

and potential at positive end of battery E₃ is 4 volts

now,

battery E₂ (6 Volts)

Negative terminal of battery is at 4 volts

but the battery itself if of 6 volts

thus potential at positive end of the battery should be 10 volts

now ,

battery E₁ (8 Volts)

positive terminal of battery is at 10 volts (see figure)

and potential across the battery must be 8 Volts as battery is of 8 volts

Thus, negative end of battery E₁ is at 2 volts (ANS)

Hence, Potential at point A is 2 Volts