First, we must find the power consumed by the light bulb. This is given by:
Power = voltage * current
Power = 250 * 0.8
Power = 200 W = 0.2 kW
Now, we must calculate the number of hours that the bulb is used, as the price given to us is in Rs/kWh. This is:
8 hours per day * 30 days
= 240 hours
Total kWh = 0.2 * 240
Total kWh = 48 kWh
Bill = 3 * 48
Bill = 144 Rs
Hello! I do not understand this question very well but this is the best answer i got...I am very sorry if you do not like this you may report me if you like.
Inertia: One reason why its hard to get up in the morning for school.
<span>The advantage of using an electromagnet rather than a regular magnet is that an electromagnet is stronger and you can control the power of the magnet. </span>
Answer:
B. a super-giant in spectral class K
Explanation:
The classification of stars are done on various characteristics like surface temperature, luminosity, spectral class etc. HR diagram is a plot which shows the relation between these characteristics of stars. One can also predict the life cycle of stars. When you plot the stars basis these characteristics on HR Diagram you can easily see that the stars with temperature lower than 4000K and brightness several thousand of that of the Sun will be a supergiant star.