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bearhunter [10]
3 years ago
13

Two identical metal rods are heated in a fire. The first rod glows red, the second rod glows yellow. Which one is colder?

Physics
2 answers:
tigry1 [53]3 years ago
4 0

Red I believe ????????????????????????

DENIUS [597]3 years ago
3 0

As metal heats, the color gets lighter, so it would start off as red, then change to orange, then yellow then white.

Red is the colder color.

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A coil of 1000 turns of wire has a radius of 12 cm and carries a counterclockwise current of 15A. If it is lying flat on the gro
grin007 [14]

Answer:

torque is 1.7 * 10^{-2} Nm

Explanation:

Given data

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radius r  = 12 cm

current I = 15A

magnitude B = 5.8 x 10^-5 T

angle θ = 25°

to find out

the torque on the loop

solution

we know that torque on the loop is

torque = N* I* A*B* sinθ

here area A = πr² = π(0.12)²

put all value

torque = N* I* A*B* sinθ

torque = 1000* 15* π(0.12)² *5.8 x 10-5 * sin25

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Anni [7]
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Katen [24]
Hey!

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