Answer to Question #52268 in Physics for vi

Question

Which of the following types of fuse should be used in a plug to connect an electrical appliance with power rating of 3.4 kW running on a 240V- mains?
13A fuse
16A fuse
6A fuse
14.2A fuse
12 An auditoriom is provided with the following appliances: two 1.0 kW water dispensers, ten 90 W eletric fans, ten 60 W lighting bulbs and two 1.4 kW air conditioners. Calculate the current drawn by the appliances on a 240V- mains
12A
9A
17A
22A
13 What is the current drawn by a 10 -horse power kernel grinder from a240 V- mains? (1 horse power = 746 watts)
24A
10A
16A
31A
14 Classification of domestic cables is based on on their --------------
current density
cross-sectional area
physical strength
length
15 Which of the following cables is suitable for connecting a 1.8 kW appliance to a 240V mains
10 A cable
5 A cable
2 A cable
1 A cable