Two conducting wires of the same material, same length and equal diameters are connected on series. How the heat produced by the combination of resistance changes?

Open in App

Solution

Heat produced, $H = I^{2} R T$

When the resistance increases, heat will also increase.

When wires are connected in series, the resistances will add up

$R_{e q} = R_{1} + R_{2} = 2 R (∵ R_{1} = R_{2})$

Heat $= I^{2} (2 R) t = 2 I^{2} R T$

$H^{'} = 2 H$ , heat produced will double

Suggest Corrections

Similar questions

Two conducting wires of the same material and equal lengths and equal diameters are first connected in series and then parallel in a circuit across the same potential difference. What would be the ratio of heat produced in series and parallel combination?

Q. (a) Define potential difference?
(b) State joules law of heating?
(c) Two conducting wires of same material and of equal lengths and equal diameters are first connected in series and then in parallel in circuit across the same potential difference. What is the ratio of heat produced in series and parallel combination?

Two conducting wires of the same material and of equal lengths and equal diameters are first connected in series and then parallel in a circuit across the same potential difference. The ratio of equivalent resistance in series and parallel combinations would be:

Join BYJU'S Learning Program

Two conducting wires of the same material, same length and equal diameters are connected on series. How the heat produced by the combination of resistance changes?

Heat produced, H=I2RTWhen the resistance increases, heat will also increase.When wires are connected in series, the resistances will add upReq=R1+R2=2R(∵R1=R2)Heat =I2(2R)t=2I2RTH′=2H, heat produced will double

Heat produced, $H = I^{2} R T$

When the resistance increases, heat will also increase.

When wires are connected in series, the resistances will add up

$R_{e q} = R_{1} + R_{2} = 2 R (∵ R_{1} = R_{2})$

Heat $= I^{2} (2 R) t = 2 I^{2} R T$

$H^{'} = 2 H$ , heat produced will double