Chapter 6
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Chapter 6. Ohm’s Law, Work, Energy and Power. V = ? V I = 4 Amps R = 4 Ohms. 16 V. V = ? V I = 2 Amps R = 4 Ohms. 8 V. V = ? V I = .2 Amps R = 5 Ohms. 1 V. V = ? V I = 4 mA R = 4 mOhms. 16 uV. V = ? V I = 14 Amps R = .5 Ohms. 7 V. I = 5 uA R = 4 MOhms V = ? V. 20V.

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Chapter 6

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Chapter 6

Chapter 6

Ohm’s Law, Work, Energy and Power


Chapter 6

V = ? V

I = 4 Amps

R = 4 Ohms

16 V


Chapter 6

V = ? V

I = 2 Amps

R = 4 Ohms

8 V


Chapter 6

V = ? V

I = .2 Amps

R = 5 Ohms

1 V


Chapter 6

V = ? V

I = 4 mA

R = 4 mOhms

16 uV


Chapter 6

V = ? V

I = 14 Amps

R = .5 Ohms

7 V


Chapter 6

I = 5 uA

R = 4 MOhms

V = ? V

20V


Chapter 6

V = ? V

I = 3 mA

R = 2 kΩ

6V


Chapter 6

V = ? V

I = 5 nA

R = 1.5 GΩ

7.5V


Chapter 6

V = ? V

I = 5 A

R = 1.5 Ω

7.5V


Chapter 6

V = 6 V

I = 3 A

R = ? Ω

2 Ohms


Chapter 6

V = 6 V

I = 3 A

R = ? KΩ

.002 Kohms


Chapter 6

Random Video of the Day


Chapter 6

Now Use your Calculator

See page 91 in book

Do Example 6.2


Chapter 6

Using your Calculator

V = 6 V

I = ? A

R = 3 Ω

2 Amps


Chapter 6

Using your Calculator

V = 6 V

I = ? mA

R = 3 Ω

2000 mA


Chapter 6

Using your Calculator

V = 10 mV

I = 2 mA

R = ? mΩ

5000 mOhms


Chapter 6

Using your Calculator

V = 10 mV

I = 2 mA

R = ? Ω

5 Ohms


Chapter 6

Using your Calculator

V = 10 mV

I = 2 mA

R = ? MΩ

.000005 MOhms


Chapter 6

Using your Calculator

V = 10 x 10-4V

I = 2 mA

R = ? MΩ

.0000005 MOhm

5 x 10^-7 MOhm


Chapter 6

Using your Calculator

V = 10 x 10-4V

I = 2 x 10-3A

R = ? MΩ

.0000005 MOhm

5 x 10^-7 MOhm


Chapter 6

Work

What is work?

Motion must take place for work to take place

Work takes place when electrical energy is converted to mechanical energy and vice versa

What is the unit for work?

Joule (J)

(This is also the same unit for Energy)

What about electrical work? (no motion involved?)

1 Joule = Energy required to raise 1 Coulomb of charge through a potential difference of 1 Volt


Chapter 6

Work

What is the equation for work?

W = Q * V

Work = Charge * Voltage

Joules = Coulombs * Volts


Chapter 6

Power

What is Power?

Power is how much work can be done in a specific amount of time

(Like MPH)

Units for Power is Watts (W)

(Like MPH)

W = Q * V


Chapter 6

Power

Equation for Power

Power = Work / Time

(Like MPH)

Power = Voltage * Current

P = V * I


Chapter 6

Power

See how Power also equals:

P = V2/R

P = I2 * R


Chapter 6

P = V * I

P = V2/R

Power

P = I2 * R

P = ? Watts

I = 6 Amps

V = 3 Volts

P = 18 Watts


Chapter 6

P = V * I

P = V2/R

Power

P = I2 * R

P = 18 Watts

I = 6 Amps

V = 3 Volts

R = ? Ω

R = .5 Ohms


Chapter 6

P = V * I

P = V2/R

Power

P = I2 * R

P = ? Watts

I = 5 Amps

V = 50 Volts

V = ? Volts

R = 10 Ohms

P = 250 Watts


Chapter 6

P = V * I

P = V2/R

Power

P = I2 * R

P = ? Watts

V = 3 Volts

R = 9 Ω

P = 1 Watts


Chapter 6

P = V * I

P = V2/R

Power

P = I2 * R

P = 32 Watts

R = 2 Ω

I = ? A

I = 4 Amps


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