Question

Q] Six resistors are connected in a circuit as shown in figure. Find the ammeter reading
when the circuit is closed.
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Answer 1

Answer:

The overall equivalent resistance will be:

AD in series with the parallel combination of (DC+CE) and DE, which is further in series with EB and BA.

Resistance of parallel combination:

1/R = 1/R1 + 1/R2

1/R = 1/4 + 1/2

1/R = 1+2/4

1/R = 3/4

R = 4/3 ohms

Resistance = 1 + 4/3 + 1 + 1 = (3+4+3+3)/3

=> 13/3 ohms

Current = V/R

I = 4/13/3

I = 12/13 A

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