can explain how solve these #Electromagnetism qusitons
------Q1
Point charges Q1 = 100 µC and Q2 = 0.12 µC are placed at (0.03,
0.08, −0.02) and (−0.03, 0.01, 0.04), respectively. Determine the
force on Q1
------Q2
Convert ? = 10?−??? − 3??? from cylindrical to Cartesian and
evaluate it at (3, 4, 5).
------Q3
Determine the gradient of ? = cos? + sin? + sin2 ? and evaluate
the gradient at (2, π/2, π).
------Q4
For the vector field ?...