PHY 104

Which of the following statements is TRUE

I. Mica is an example of an insulator

Ii. Maganese is an example of semiconductor

III The fur_rubbed plastic rod and the silk-rubbed glass rod repel each other

IV Plain plastic rods neither attract or repel each other

• I and IV only

• I, II, and III only

• I and III only

• I, II, III and IV

For two charges of magnitude Q1 and Q2 separated by a distance, r, the force of interaction, F,, between them according to Coulomb's law can be expressed as

• 
• 
• 
• 

Which of the following is true

I. Electric field lines always start on negative charge and end on positive charge

II. The electric line of force will never cross or intercept

III. The direction of the field at a point is perpendicular to the line of force

IV. Lines of force will sometimes start or end in mid-space .

• I and III only

• I and IV only

• II only

• I, Ii and III only

The amount of work that is done on a unit charge to move from infinity to the said point in the field is known as

• Electric Flux

• Electric Field Strength

• Electric field Intensity

• Electric Potential

True or False

If that one charged objects are present, the total electric Field, at any point, due to all the charges is the vector sum of the electric fields of the individual object

• True✨✨

• False 😌

• I don't know 😀😀😀

• Gen Sec didn't teach me this 😭😭😭😭

Which of the following is not the process of charging a body.

• By Friction

• By conduction

• By induction

• By Grounding

Total number of lines of electric force is known as

• Electric Flux

• Electric field Intensity

• Electric Field potential

• Electric Field Density

True or False

When the test Charge is placed near the electric field from a charged body. The field will be directed toward the test charge if the test charge is positive..

• True ✨✨

• That's a Lie😌😌

• Me I don't know ooo😭😭😭

• I have forgotten 😪😪😪

Which of the following is true

• The work done by the coulomb force is dependent of the path taken

• Coulomb's force obey the superposition principle

• The Coulomb's force acts perpendicular to the line joining the two point charges

• Electric force is a scalar quantity

Who decides your score in this course

• The Lecturers decide my score 🤗🤗

• I decide it by myself because I am a child of God ✨✨✨✨

• I don't even know 😌😌

• Well, let's see sha 😪😪😪