Aperson leaves a starting point at a constant speed of 4 mi./s and walks for four seconds the person then stops for two seconds the person then continues walking at a constant speed of 2 mi./s for four seconds

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell