Is there a difference between the work done by an electrical appliance and the electric energy consumed in the circuit? Resistance R = 6 Ω, connect it to both ends of 3V power supply, power on for 1 minute, how many joules does the current do on R? How many joules does the circuit consume? How to calculate the electric energy consumed in this circuit?

Is there a difference between the work done by an electrical appliance and the electric energy consumed in the circuit? Resistance R = 6 Ω, connect it to both ends of 3V power supply, power on for 1 minute, how many joules does the current do on R? How many joules does the circuit consume? How to calculate the electric energy consumed in this circuit?

These two things are the same in this problem, w = u ^ 2 / R * t = 90J
The work done by an electric appliance represents the electric energy consumed by the appliance. In this case, it is the calorific value of the resistor, but for an electric lamp, it is calorific value + light energy
The electric energy consumed in the circuit refers to the total work done by the power supply, that is, the sum of the electric energy consumed by all the electrical appliances in the circuit
There is only one electrical appliance in this problem, and there is only one energy consumption mode, so they are all 90J

For example: the power consumption of a 24 V bulb is 10 W, then how much is the power consumption of a 12 V bulb? Please help me calculate the result,

2.5W resistance: 24 & # 178 / 10 = 57.6 (Ω) power: 12 & # 178 / 57.6 = 2.5 (W)

How to calculate the power when the battery capacity is 10Ah and the voltage is 48V

The capacity of the battery is 48V × 10Ah = 480wh = 0.48kwh
To calculate the power, you need to know the output current I value
Then power P = UI = 48V I
Otherwise, we can't calculate the power!
For reference only!
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The voltage of a DC motor is 24 V and the rated power is 1300W. How to calculate the current?

Rated current I = rated power / rated voltage
Current I = voltage / (motor internal resistance + back EMF)
Motor internal resistance = armature resistance R
Back EMF = coefficient CE * flux Φ * speed n