**direction**of the net

**electric field at the center of the square**is (iv) downward

**direction**: The

**electric field due**to positive

**charge**is directed away from the

**charge**along the line joining the

**charge**and

**center of the square**.

**When a point charge of +q is placed on one corner of a square?**

**When a point charge** of +**q is placed on one corner of a square**, an electric field strength of 2 N/C is observed at the center of the **square**. Suppose three identical **charges** of +**q** are **placed** on the remaining three **corners** of the **square**.

**What is the direction of the electric field at the origin?**

Since the test charge will repelled by a positive charge and attracted to a negative, the e **field** is defined as going outward from a positive charge and inward toward a negative charge.

**How are the magnitude and direction of an electric field determined?**

The **Direction** of the **Electric Field** Vector The **magnitude** of the **electric field** vector is calculated as the force per charge on any given test charge located within the **electric field**. The force on the test charge could be directed either towards the source charge or directly away from it.

**What is k in coulomb’s law?**

The symbol **k** is a proportionality constant known as the **Coulomb’s law** constant. The value of this constant is dependent upon the medium that the charged objects are immersed in. If the charged objects are present in water, the value of **k** can be reduced by as much as a factor of 80.

**direction**of the net

**electric field at the center of the square**is (iv) downward

**direction**: The

**electric field due**to positive

**charge**is directed away from the

**charge**along the line joining the

**charge**and

**center of the square**.

**When a point charge of +q is placed on one corner of a square?**

**When a point charge** of +**q is placed on one corner of a square**, an electric field strength of 2 N/C is observed at the center of the **square**. Suppose three identical **charges** of +**q** are **placed** on the remaining three **corners** of the **square**.

**What is the direction of the electric field at the origin?**

Since the test charge will repelled by a positive charge and attracted to a negative, the e **field** is defined as going outward from a positive charge and inward toward a negative charge.

**How are the magnitude and direction of an electric field determined?**

The **Direction** of the **Electric Field** Vector The **magnitude** of the **electric field** vector is calculated as the force per charge on any given test charge located within the **electric field**. The force on the test charge could be directed either towards the source charge or directly away from it.

**What is k in coulomb’s law?**

The symbol **k** is a proportionality constant known as the **Coulomb’s law** constant. The value of this constant is dependent upon the medium that the charged objects are immersed in. If the charged objects are present in water, the value of **k** can be reduced by as much as a factor of 80.