Questions
In the circuit shown, if a conducting wire is connected between point s A and^B, the current in this wire willsss
a
flow from A to B
b
flow in the direction which will be decided by the value of V
c
be zero
d
flow from B to A
detailed solution
Correct option is D
Current will flow from higher to lower potential.Before connecting wire from A to B, voltage drop across 4 Ω = V × 44+4 =V2Voltage drop across 1 Ω = V × 11+3 =V4∴ voltage drop at A=V−V2=V2 and voltage drop at B=V−V4=3V4So, VB > VAHence, on connecting wire between points A and B, the current will flow from B to A.Talk to our academic expert!
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Seven resistances are connected as shown in the figure. The equivalent resistance between A and B is
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