Q1+2 P183
1	a 1W
	b 1150W
	c The current through the lamp in normal operation is 0.4A. A 13A fuse would not melt if a current greater than 0.4A passed through it.
2	a	i 36W
		ii 460W
	b	i 3A
		ii 5A
	c	i 6.5V, 169W
		ii 2.8%

Q2+3 P187
2 	a 	i 1.5kWh
		ii 0.5kWh
		iii0.8kWh
3	a	i 4kW
		ii 43.2 million joules
	b	i 390W
		ii 51kWh
		iii £6.10