Question

can anyone plz solve this problem I am not getting this

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Answer 1

In the given circuit ,

Three resistors each of resistance 0.5,1.5 and 1 ohm are connected in series

Equivalent resistance for resistances connected in series is given by the formula ,

$\implies{R \: eq = R 1 + R 2 + R3}$

$\implies{R \: eq =0.5 + 1.5 + 1}$

$\boxed{R \: eq =3 \: ohm}$

Voltage of the battery = 20 V

Current flowing through the circuit is given by the formula ,

$\implies{I = \frac{V}{R} }$

$\implies{I = \frac{20}{3} }$

$\boxed{I = 6.6 \: A}$

We know that in Series combination current flowing through each resistor is the same

Voltage across 0.5 ohm resistor

$\implies{V = 6.6 \times 0.5}$

$\boxed{V (0.5)= 3.3 \: V}$

Voltage across 1.5 ohm resistor

$\implies{V = 6.6 \times 1.5}$

$\boxed{V (1.5)= 9.9\: V}$

Voltage across 1 ohm resistor,

$\implies{V = 6.6 \times 1}$

$\boxed{V (1)= 6.6\: V}$