Which describes bonding electrons in a polar covalent bond?

What should the power status of a circuit be when measuring resistance with an ohmmeter?

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)

Where do magnetic lines of force enter earth?