Question

in a circuit three resistors of resistance are connected in parallel combination which have resistance 4 ohm each which are connected to a potential difference 6 volts find total resistance in a circuit and total current ​

Answer 1

therefore answer is 1.33 ohm and 4.5A

Answer 2

Three resistors each of resistance 4 ohm are connected in parallel combination, having a potential difference of 6 volt.

We have to find the total resistance and total current in the circuit.

From above data we have; R1 = R2 = R3 = 4 ohm

As they are connected in parallel combination. So,

1/Rp = 1/R1 + 1/R2 + 1/R3

1/Rp = 1/4 + 1/4 + 1/4

1/Rp = 1/4 (1 + 1 + 1)

1/Rp = 3/4

Rp = 4/3 ohm

Req = Rp

Req = 4/3 ohm

Therefore, the total resistance in the circuit is 4/3 ohm.

Ohm's law: The potential difference i.e. V

across the ends of the wire is directly

proportional to the current i.e. I flowing

through that wire provides the temperature

remains constant.

V ∝ I

V = IR (here, R is constant)

Substitute value of V = 6V and R = 4/3 ohm

6 = I × 4/3

(6 × 3)/4 = I

9/2 = I

4.5 = I

Therefore, the total current in the circuit is 4.5 A.