Question

Какое кол-во теплоты выделяется в проводе сопративлением 6 Ом если сила тока в нем 4А в течении 20 секунд.

Answer 1

t=20 c, R=6 Ом, I=4 А.
   Q-?   
Q=I²Rt.
Q=16*6*20=1920 Дж.

Answer 2

Calculating Heat Generated by a Resistor

To calculate the amount of heat generated by a resistor, we can use the formula:

Heat (Q) = I^2 * R * t

Where: - I = current in the circuit (in amperes) - R = resistance of the resistor (in ohms) - t = time (in seconds)

Given: - I = 4A - R = 6Ω - t = 20 seconds

Calculation

Using the given values in the formula: Q = (4A)^2 * 6Ω * 20s

Q = 16A^2 * 6Ω * 20s

Q = 1920 Joules

Therefore, the amount of heat generated in the resistor with a resistance of 6Ω, a current of 4A, and for a duration of 20 seconds is 1920 Joules.