This question is about basic understanding on batteries, current, and light bulb

Question

This question is about basic understanding on batteries, current, and light bulbs. Which of the following is/are true? Select all that are correct.

I'm pretty sure that the 3rd one is correct but I can't figure out which of the others are correct.

This question is about basic understanding on batteries, current, and light bulbs. Which of the following is/are true? Select all that are correct. A battery can be considered as a constant voltage source. The brightness of a bulb does not change even if the current through the bulb is increased. A bulb becomes brighter if current through the bulb is increased. A battery has an infinite lifetime

Explanation / Answer

1) True ( In circuit calculations, battery is considered to be giving constant voltage)

2) False ( when current increases, power dissipated through bulb increases => light increases)

3) True

4)False (No. )

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