Question: The surface temperature of the filament in an incandescent light bulb is 1400 ∘C. If we double the current flowing through

Question

Question:
The surface temperature of the filament in an incandescent light bulb is 1400 ∘C. If we double the current flowing through the light bulb without changing its resistance, what will the surface temperature become?

I’m confused on how to solve this. I thought of using ohm’s law but I don’t know how it could relate to temperature. Thanks

in progress 0
Tryphena 4 years 2021-07-30T10:23:12+00:00 1 Answers 111 views 0

Answers ( )

  1. Neala
    0
    2021-07-30T10:24:21+00:00
    Reply

    Answer:

    The surface temperature become 2092.9793°C

    Explanation:

    Given data:

    T₁ = surface temperature of the filament = 1400°C = 1673 K

    Double the current flowing through the light bulb

    Question: What will the surface temperature become, T = ?

    Increases the current by the double, increases the heat by four, and the temperature by 4^1/4 too.

    T=T_{1} *(4)^{1/4} =1673*(4)^{1/4} =2365.9793K=2092.9793C

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )