Electric field strength

Electric ________ is defined as the electric force per unit positive test charge that acts at that point in the same direction as the force.

A. Static force

B. Field strength

C. Potential

D. Charge

• A

• B

• C

• D

What is the formula for calculating electric field strength ?

What is the direction for a positive isolated point charge ?

• A

• B

• No direction

What is the unit for electric field strength ?

For a negative isolated point charge , what is the direction of the electric field strength when the electric force points to the right ?

• Electric field strength does not exist

• Opposite direction with the electric force

• Same direction with the electric force

Electric field strength is a ______ quantity.

• Scalar

• Vector

What is the direction of electric field strength of the negative charge ?

• C

• A

• D

• B

What is the direction of the electric field strength of each of the charges respectively ?

• Q1 --> D

• Q3 ---> D

• Q4---->B

• Q2--->B