Coulomb's Law and Charge Calculations

The video tutorial covers the application of Coulomb's law to calculate the force between two charges. It begins with an introduction and problem statement, followed by identifying known values and variables. The instructor explains the formula for Coulomb's law and demonstrates the calculation process step-by-step, concluding with the final result and closing remarks.

What is the main topic discussed in the video?

• Coulomb's Law

• Ohm's Law

• Newton's Laws

• Thermodynamics

What are the charges involved in the problem?

• 4 x 10^-9 C and -2 x 10^-9 C

• -4 x 10^-9 C and 2 x 10^-9 C

• -4 x 10^9 C and 2 x 10^9 C

• 4 x 10^9 C and 2 x 10^-9 C

What is the distance between the charges in meters?

• 0.002 m

• 0.02 m

• 2 m

• 0.2 m

What is the symbol used for charge in the video?

• Q

• K

• R

• Ki

What is the value of the constant K in Coulomb's law?

• 8.99 x 10^9 Nm²/C²

• 9 x 10^9 Nm²/C²

• 9.8 x 10^9 Nm²/C²

• 10 x 10^9 Nm²/C²

Why are the signs of the charges not considered in the calculation?

• They are irrelevant to the force

• They only indicate direction

• They cancel each other out

• They are too small to matter

What operation is performed on the distance in the formula?

• Multiplication

• Subtraction

• Addition

• Squaring

What is the result of the calculation in terms of force?

• 18 x 10^-9 N

• 18 x 10^-6 N

• 18 x 10^-5 N

• 18 x 10^-4 N

What is the unit of the force calculated?

• Volts

• Joules

• Watts

• Newtons

What is the final statement made in the video?

• See you next time

• Goodbye

• Thank you for watching

• Assalamualaikum warahmatullahi wabarakatuh