Questions
In the circuit when switch is closed and is open, the ideal voltmeter shows a reading 18V. When switch is closed and is open, the reading of voltmeter 24V. When and both are closed the voltmeter reading will be
detailed solution
Correct option is A
When S1 is closed E6+r6=18→1When only S2 closed E12+r12=24→2Dividing (1) and (2) 12+r6+r12=34 24+2r=18+3r r=6ΩWhen both are closed 6×1218=4ΩV18=E4+r4E6+r6V6=26+64+6V=12×1210=14.4VTalk to our academic expert!
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in the arrangement shown, readings of ideal voltmeters V1, V2 and V3 are 20 volt, 50 volt and 60 volt respectively. then current flowing through the current carrying branch is
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