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Three resistance are joined together to form a letter Y, as shown in figure. If the potentials of the terminals `A, B` and `C` are `6V, 3V` and `2V` respectively, then the potential of the point O will be

A

`4V`

B

`3V`

C

`2.5V`

D

`0V`

Text Solution

Verified by Experts

The correct Answer is:
B
Let `V_0=V`
Now, `I_(AO)+I_(BO)=I_(OC)`
`:. (6-V)/6+(3-V)/3=(V-2)/2`
solving this equation, we get
`V=3V`
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DC PANDEY ENGLISH-CURRENT ELECTRICITY-Level 1 Objective
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  4. The drift velocity of free elecrons in a conductor is v, when a curren...

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  11. A part of a circuit is shown in figure. Here reading of ammeter is 5A ...

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  14. In the given circuit, the voltmeter records 5 volt. The resistance of ...

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  15. The wire of potentiometer has resistance 4Omega and length 1m. It is c...

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  16. The potential difference between points A and B, in a section of a cir...

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  17. Two indentical batteries, each of emf 2V andinternal resistance r=1Ome...

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