Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityEquivalent ResistanceHard2 minQB

PhysicsHardsingle choice

The equivalent resistance between $A an d B$ of the network shown in figure:

Answer:

Solution:

The given circuit can be redrawn as shown below:

Since the circuit is in balanced wheatstone configuration, $\frac{R}{2 R} = \frac{3 R}{6 R}$ .

The $9Ω$ resistor can be omitted. Now, the circuit has two branches having two resistors connected in series.

Therefore, the resistance of upper branch is $R + 3 R = 4 R$ and lower branch is $2 R + 6 R = 8 R$ . The equivalent resistance will therefore be:

$R_{e q} = \frac{( 4 R ) ( 8 R )}{4 R + 8 R} = \frac{32 R ^{2}}{12 R} = \frac{8}{3} R$

Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Equivalent Resistance

⏱ 2mℹ️ Source: QB

Loading discussions...