Question

A particle having charge \( 10^{-9} \, \text{C} \) moving in \( x \)-\( y \) plane in fields of \( 0.4 \hat{j} \, \text{N/C} \) and \( 4 \times 10^{-3} \hat{k} \, \text{T} \) experiences a force of \( \left( 4 \hat{i} + 2 \hat{j} \right) \times 10^{-10} \, \text{N} \). The velocity of the particle at that instant is _______ m/s.

• A. \( 50 \hat{i} + 50 \hat{j} \)
• B. \( 100 \hat{i} + 50 \hat{j} \)
• C. \( -50 \hat{i} + 100 \hat{j} \)
• D. \( 50 \hat{i} + 100 \hat{j} \)

Answer 1

The Correct Option is D