Question

Find the total resistance of the following figure and also the current reading in the Ameter

Answer 1

Given,

Resistor,R1 = 4ohm

Resistor,R2 = 8ohm

Resistor,R3 = 8ohm

Potential Difference,d = 8volts.

Refer to the attachment for diagram

i)Since we know that R2 and R3 are in a Parallel combination,hence thier net resistance will be given by=>

1/Rp = 1/R2 + 1/R3

=>1/Rp = 1/8 + 1/8

=>1/Rp = 2/8

=>Rp = 4ohm.

hence the net resistance of the Parallel combination is 4 ohm.

ii)Now, since Rp and R1 are in series combination,hence their net resistance is given by-->>

Rn = Rp + R1

=>Rn = 4 + 4

=>Rn = 8ohm.

hence the net resistance of the whole circuit is 8 ohm.

Answer 2

Answer:

current across the circuit is 1 A, & equivalent resistance is 3 ohm