Question

I=2А t=60с A=26,4кДж U-? R-? ​

Answer 1

Ответ:

A=P*t=U*I*t =>

P=A/t=440 Вт;

U=P/I=220 B;

R=U/I=U²/P=P/I²=110 Ом.

Объяснение:

Answer 2

To find the voltage (U) and resistance (R) in a circuit with a current (I) of 2 amperes, a time (t) of 60 seconds, and energy (A) of 26.4 kilojoules, you can use the formulas for electrical energy and Ohm's law.

1. First, calculate the electrical energy (E) in the circuit using the formula:

   E = A (energy in joules) = 26.4 kJ * 1000 = 26,400 joules.

2. Now, calculate the power (P) in the circuit using the formula:

   P = E / t = 26,400 joules / 60 seconds = 440 watts (W).

3. You can use Ohm's law to find the voltage (U) and resistance (R) in the circuit. Ohm's law states:

   U = I * R

   Where U is voltage in volts (V), I is current in amperes (A), and R is resistance in ohms (Ω).

   Rearrange the formula to find resistance:

   R = U / I

4. Plug in the values:

   R = 440 W / 2 A = 220 Ω

So, the voltage in the circuit is not given, and you'll need more information or measurements to determine the voltage (U). However, the resistance (R) is 220 ohms.