QUESTION 7: ELECTRICITY 7.1 Define Faraday's first law of electrolyses. 7.2 Define electroplating. 7.3 Three cells, each with an EMF of 4 V and internal resistance of \( 0,1 \Omega \) per cell, are connected in series to a circuit as shown in FIGURE 3. FIGURE 3 Calculate: 7.3.1 The total resistance of the circuit 7.3.2 The ammeter reading 7.3.3 The voltage across AB 7.3.4 The current through the \( 2 \Omega \) resistor