(Solved): QUESTION 7: ELECTRICITY 7.1 An electrical circuit as shown in FIGURE 4 below consists of 3 cells con ...

QUESTION 7: ELECTRICITY 7.1 An electrical circuit as shown in FIGURE 4 below consists of 3 cells connected in series, each having an EMF of 2 volts and internal resistance of 0,1 ohms per cell, connected in a series circuit. Calculate the following: 7.1.1 The total resistance of the circuit 7.1.2 The ammeter reading 7.1.3 The voltage across \( A B \) 7.1.4 The current through the \( 4 \Omega \) resistor 7.2 A single-phase transformer has a supply voltage of 220 V . The turn ratio primary: secondary is \( 10: 1 \). The secondary current at full load is 2 A and the secondary coil has 28 windings. Calculate the following: 7.2.1 The secondary voltage 7.2.2 The primary current