Question

7. Which one has less resistance a 60 w bulb or a 40 w bulb. Give reason.​

Answer 1

Explanation:

From the relation:

P = V²÷R ( during parallel combination)

P becomes inversely proportional to resistance. Hence 60 watt has less resistance

From the relation:

P= I²R ( during series combination)

P becomes directly proportional to resistance. Hence, 40 watt has more resistance.

Note: When the bulbs are not connected to each other, you have to follow the rule of parallel combination.

Answer 2

Answer:

The type of motion in which the object travels with a varied speed is called Non-Uniform Motion. This means that the object does not cover the equal distance in equal time intervals. ..