The equivalent resistance between A and B is-A- 0-5B- 2C- 1D- 4

The correct option is C 1 Two parallel combination of resistors: Effective resisitance R = R_1.R_2/R_1+R_2 R_parallel = 1 × 1/1+1 = 1/2 Ω for both of them. ...

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Standard X

Physics

Resistors in Parallel

The equivalen...

Question

The equivalent resistance between A and B is:

0.5

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Solution

The correct option is B
1

Two parallel combination of resistors:

Effective resisitance $R$ = $\frac{R_{1} . R_{2}}{R_{1} + R_{2}}$

$R_{p a r a l l e l}$ = $\frac{1 \times 1}{1 + 1}$ = $\frac{1}{2}$ Ω for both of them.

Now, they are in series:

Effective resistance $R$ = $R_{1} + R_{2}$ = $0.5 + 0.5$ = $1 Ω$

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The equivalent resistance between A and B is:

The correct option is B 1 Two parallel combination of resistors: Effective resisitance R = R1.R2R1+R2 Rparallel = 1×11+1 = 12 Ω for both of them. Now, they are in series: Effective resistance R = R1+R2 = 0.5+0.5 = 1Ω