1. Applied Electrical Technology 1
Ohm’s law applies Ohm’s law may or
may not apply

2. Applied Electrical Technology 1

3. Applied Electrical Technology 1

4. Applied Electrical Technology 1
P = V I = 6 x 1 = 6 W

5. current = 10A, resistor = 10 Ω
• P = I2 R , P= 102 x 10 = 1000kW

6. Applied Electrical Technology 1
P = I2 R
I = √ (P / R ) = √ ( 180 / 5 ) = 6 A

7. Applied Electrical Technology 1
P = V2 R
V = √ ( P X R ) = √ ( 180 X 5 ) = 30 V

8. Applied Electrical Technology 1
P
=V I
= 30 X 6
= 180 W

9. Applied Electrical Technology 1
P =V I
I = P / V
= 2 x 50 / 12
= 8.33 A