1. Electric Power

2. Complete the table Power (watt) Resistance (ohms) Current (A) Voltage (v) Kettle Dryer (red) Dryer (white) Filter

3. Why do you have different powers for the dryer ( red - white )? What is the definition of power ?

4. 2- Power = voltage^2 /resistance 1- Power = energy / time 3- Power = current X voltage 4- Power = current ^2 X resistance

5. Complete the table Power (watt) Resistance (ohms) Current (A) Voltage (v) 1950-------------220-240Kettle 1700-2000---------------220-240Dryer (red) 650---------------220-240Dryer (white) 8.5---------------220-240Filter

6. Complete the table Power (watt) Resistance (ohms) Current (A) Voltage (v) 19508.86-8.12220-240Kettle 1700-20007.7-8.3220-240Dryer (red) 6502.95-2.7220-240Dryer (white) 8.50.038-0.035220-240Filter

7. Complete the table Power (watt) Resistance (ohms) Current (A) Voltage (v) 195024.88.86-8.12220-240Kettle 1700-200028.57.7-8.3220-240Dryer (red) 65074.52.95-2.7220-240Dryer (white) 8.557890.038-0.035220-240Filter

8. Qs. Q1 : if I = 2 A V = 5 v find P = ? Q2 : if P = 22 watt V = 15 v find I = ? Q3 : if I = 0.54mA R = 5 ohms find P= ? Q4 : if W = 33 J t= 3s find P = ? Q5 : if P = 220 watt t = 4min find W = ?

9. Did you see this object ? And Where ?

10. The fused plug What is the function of fused ?