Question

Charge on electron is

• A. \( 3.2 \times 10^{-19} \, \text{C} \)
• B. \( 1.6 \times 10^{-19} \, \text{C} \)
• C. \( -1.6 \times 10^{-19} \, \text{C} \)
• D. \( -3.2 \times 10^{-19} \, \text{C} \)

Hint:

Electron has a negative elementary charge, opposite to the positive charge on a proton.

Answer 1

The Correct Option is C

The fundamental charge of an electron is known and is negative in nature: \[ q_e = -1.6 \times 10^{-19} \, \text{C} \] This is one of the most fundamental physical constants.