Rava is researching an electric car's range based on charging time. The video guides viewers through filling in a table with given data points, assuming a linear relationship between charging time and range. It explains how to derive an equation to calculate charging time for any given range, emphasizing the multiplication factor of 12. The video concludes with the equation T = K/12, allowing users to determine charging time for any range.

What is Rava researching in the video?

• A wind turbine

• A solar panel

• An electric car

• A new smartphone

What does the graph Rava finds show?

• The range gained based on charging time

• The battery life of the car

• The cost of charging the car

• The speed of the car

What is the range when the charging time is 30 minutes?

• 180 km

• 360 km

• 540 km

• 720 km

What is the multiplication factor used to determine the range from the charging time?

• 10

• 11

• 12

• 13

If the charging time is 45 minutes, what is the range?

• 360 km

• 540 km

• 900 km

• 720 km

What equation is derived to calculate the range based on charging time?

• K = 10 * T

• K = 11 * T

• K = 12 * T

• K = 13 * T

What is the equation to find the charging time for a given range?

• T = K / 13

• T = K / 12

• T = K / 11

• T = K / 10

If the range is 120 km, how much charging time is needed?

• 20 minutes

• 5 minutes

• 10 minutes

• 15 minutes

What assumption is made about the battery in the problem?

• It is a small battery

• It is a rechargeable battery

• It is a medium-sized battery

• It is an infinitely large battery

What is the range when the charging time is 10 minutes?

• 120 km

• 90 km

• 60 km

• 150 km