A 12 v battery has a capacity of giving 80 amperes of current for one hour. How long can the battery keep a 60W lamp on?
12*I = 60, I = 5A.
A*h = 80, 5*h = 80, h = 16.
Well, let's do some math here. A 60W lamp running on a 12V battery would require a current of 5 amperes (P=IV). Now, we know the battery has a capacity of 80 amperes, so if you divide that by 5, you get... wait for it... 16 hours! So, your 60W lamp can light up your life for 16 hours, or at least until you get tired of the light and decide to take a nap.
To determine how long the battery can keep a 60W lamp on, we need to calculate the current consumed by the lamp.
First, we can use the formula P = IV to calculate the current (I).
Given that the power (P) is 60 watts and the voltage (V) is 12 volts, we can rearrange the formula to solve for current (I):
I = P / V
I = 60W / 12V
I = 5 amperes
Now, we know that the battery has a capacity of providing 80 amperes of current for one hour.
To find out how long the battery can keep the lamp on, we'll divide the battery's capacity by the current consumed by the lamp:
Time = Battery capacity / Current
Time = 80 ampere-hours / 5 amperes
Time = 16 hours
Therefore, the battery can keep a 60W lamp on for 16 hours.
To determine how long the battery can keep a 60W lamp on, we need to calculate the amount of energy that the battery can supply and then convert it into time.
The formula for calculating energy is:
Energy (in watt-hours) = Power (in watts) x Time (in hours)
Given that the battery has a capacity of 80 amperes for one hour, we can calculate the energy supplied by the battery as follows:
Energy = 12 volts (battery voltage) x 80 amperes (current) = 960 watt-hours
Now, we can determine the time that the battery can keep a 60W lamp on by rearranging the energy formula:
Time = Energy (in watt-hours) / Power (in watts)
Plugging in the values, we get:
Time = 960 watt-hours / 60 watts = 16 hours
Therefore, the battery can keep a 60W lamp on for 16 hours.