Electric Fields

What is the SI unit of electric field strength?

Which of the following correctly represents the electric field due to a point charge Q at a distance r?

In which direction does the electric field point around a positive point charge?

Two charges +3μC and -3μC are placed 0.5 m apart. What is the magnitude of the electric field at the midpoint? (Use k = 9 × 10⁹ Nm²/C²)

Which expression gives the electric potential V at a distance r from a point charge Q?

If the electric field between two parallel plates is 2000 N/C and the potential difference is 100 V, what is the distance between the plates?

An electron is placed in a uniform electric field of 500 N/C directed east. What is the force experienced by the electron? (Charge of electron = -1.6 × 10⁻¹⁹ C)

Which of the following statements about electric field lines is FALSE?

Calculate the work done in moving a 2 μC charge between two points in an electric field where the potential difference is 50 V.

In the Indian context, which of the following is an example of electric field application?