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JinKazama1:
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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.
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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