Assignment 2 his assignment covers the work done in Topic 3. The marks allocated are shown in bra
end of each question.
Question 1
Write the missing word(s) to complete the following statements:
1.1 To obtain more current capacity, cells are connected in
1.2 A chemical cell is one which converts
energy into
energy
1.3 Transformers have no parts.
1.4 When two resistors are connected in parallel, the voltage across each resistor is the
1.5 In a parallel circuit, an open circuit in one branch results in current throught
but the other branches will still draw their current.
1.6 If each of two bulbs connected in parallel dissipates 100 W, then the total power sur
voltage source is equal to
1.7 One of the advantages of load balancing is that each phase conductor carries the
value.
1.8 In a series circuit the total resistance is than any of the resistors.
[10 x
Question 2
2.1 Two resistors with values of 21 and 6 1 are connected in parallel. This combination
connected in series with a 3 1 resistor. The supply voltage of the whole circuit is 12
2.1.1 Draw a neat, labelled diagram of the circuit.
2.1.2 Calculate the following:
a) the resistance of the parallel pair of resistors
b) the total resistance of the circuit
c) the total current flow of the circuit
d) the voltage drop across each resistor
e) the current flowing through the 2 resistor
f) the current flowing through the 61 resistor.
Direct current (DC) and alternating current (AC) circuits​