Problem description:

How can the power consumed by devices such as resistors be converted into the power consumption of batteries?

Analysis:

Milliampere hour and power cannot be converted.

Milliampere-hour is the unit of electricity.

Electricity q = I * T. I is current and T is time.

Milliampere is the unit of current, and hour is hour. 1 A = 1000 mA.

The amount of electricity is defined as the product of the discharge current (ampere or milliampere) and the discharge time (hours) of the battery. For example, 10 ampere hour means that 10 ampere current can continuously supply power 10 hour, or 10 ampere current can continuously supply power 10 hour, and so on.

Power is a physical quantity, indicating the speed of doing work, and the unit is watt.

1W = 1W/T = UI = 1V。 ampere

W=UIT, so we need to know the working voltage of the resistor to determine it.

Working time = work/power = voltage * quantity/power

T = w/p = uq/p。