Physics, asked by Anonymous, 1 year ago

ASAP answer it guys:-!:-!:-!:-!

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JinKazama1: 15/7 is your answer?
JinKazama1: 15/7Volt

Answers

Answered by JinKazama1
5
Final Answer : 2.14V when switch is open
0 V when switch is closed.

Understanding :

1) Since, negligible current passes through voltmeter.
So, current will pass through resistances only.
Let the current' I 'passes through the circuit.


Laws :
1) Kirchoofs Laws.

Steps :
1) Apply KVL in loop consisting of resistances to get value of I.
2) Find V(B)- V(A).

See Pic For Calculation.


Second Part :
=>
When the switch is close, the middle branch becomes a straight wire (short circuit),
meaning the voltage across it is zero.

=> So, there will be V(A) = V (B).
Hence, Potential difference will be zero.

V (diff) = 0 Volt.


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Anonymous: thank. u so much
JinKazama1: My Pleasure :)
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