A charge q1 exerts a force of 45N on a charge of q2=10−5C located at a point 0.2m from q1. The magnitude of q1 is
A charge q1 exerts some force charge q2. If q3 is brought near, the force of q1 on q2
A charge q1 exerts some force on a second charge q2. If third charge q3 is brought near, the force of q1 exerted on q2
Three point charges q1=10−6C,q2=−10−6C and q3=0.5×10−6C are located in air at the corners of an equilateral triangle of 50 cm side, the magnitude of the force on q3 will be ______ ×10−3 N.
Two point charges q1 and q2 of magnitude +10−8 and −10−8C, respectively, are placed 0.1m apart. Calculate the magnitude of electric field at point A, shown in figure.