What is the percentage loss of energy as heat in incandescent bulbs?*90%20%95%60%

How much energy do LED lights use compared to incandescent light bulbs?

An energy-efficient light bulb transforms 100 J of input energy into 75 J of light energy. Another 25 J of heat energy is produced as waste.Calculate the light bulb's energy efficiency.25%50%75%100%

A bulb is rated at 330V- 110W. What do you think is its resistance? Three such bulbs burn for 5hrs at a stretch. What is the energy consumed? Calculate the cost in rupees if the rate is 70 paise per unit?

Three such bulbs burn for 5hrs at a stretch. What is the energy consumed?

When the current flowing through a lamp is decreased by 2%, then the percentage change in the power consumed by the lamp will be Only one correct answerA.5.48%B.4.25%C.3.96%D.6.75%