A 100-W (watt) light bulb has resistance R=143Ω (ohms) when attached to household current, where voltage varies as V=V0sin(2πft), where V0=110 V, f=60 Hz. The power supplied to the bulb is P=V2R J/s (joules per second) and the total energy expended over a time period [0,T] (in seconds) is

Complete Question

A 100-W (watt) light bulb has resistance R=143Ω (ohms) when attached to household current, where voltage varies as V=V0sin(2πft), where V0=110 V, f=60 Hz. The power supplied to the bulb is P=V2R J/s (joules per second) and the total energy expended over a time period [0,T] (in seconds) is

Compute U if the bulb remains on for 5h

The value is  

Explanation:

From the question we are told that

   The power rating of the bulb is

   The resistance is  

   The  voltage is  

   The  energy expanded is

   The  voltage  

   The frequency is  

    The  time considered is  

Generally power is mathematically represented as

=>          

=>          

So  

=>  

=>  

=>  

=>  

=>  

=>  

area of focus