Assignment:
Question 1.
a) What is the purpose of the lightning rod and how does it work?
b) Why is the car interior a safe place to be during a thunderstorm? Explain.
Question 2.
a) In a typical household electrical circuit are the appliances connected in series or in parallel? Why? Explain.
b) What are the purpose and role of a circuit breaker in a household circuit?
c) How is the circuit breaker connected to the rest of the circuit: in series or in parallel?
d) How does the circuit breaker work?
e) What are the purpose and role of a fuse in an appliance?
f) How does the fuse work?
g) Sketch a diagram of a household circuit consisting of a circuit breaker, a TV set, a dishwasher, and a computer.
h) If the TV set draws 150 W of power, the dishwasher 1500 W of power and the computer 100 W of power, will a typical 15 A circuit breaker trip if they operate simultaneously on one line? Explain why.