How long will a 60W light bulb run for, if supplied with 1kJ of energy?
The energy used by the 60W bulb in one second can be calculated as follows:
Energy = Power x Time
1 kJ = 1000 J
So, the energy used by the bulb in one second is:
Energy = Power x Time
1000 J = 60 W x Time
Therefore, Time = Energy / Power
Time = 1000 J / 60 W
Time = 16.7 seconds (approx)
Therefore, the 60W light bulb will run for approximately 16.7 seconds when supplied with 1kJ of energy.
To find out how long a 60W light bulb will run with 1kJ of energy, we can use the following equation:
Energy = Power x Time
Given that the power of the light bulb is 60W (or 60 Joules per second) and the energy supplied is 1kJ (or 1000 Joules), we can rearrange the equation to solve for time:
Time = Energy / Power
Plugging in the values, we get:
Time = 1000 J / 60 J/s
Simplifying the equation:
Time = 1000 J / 60 J/s = 16.67 seconds
Therefore, a 60W light bulb will run for approximately 16.67 seconds with 1kJ of energy.