If the work done by a battery to move a unit charge through the battery from one terminal to the other is doubled, what is the effect on the battery's emf?a. emf becomes zero. b. emf is halved.

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.