Survey

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts

Galvanometer wikipedia , lookup

Valve RF amplifier wikipedia , lookup

Nanofluidic circuitry wikipedia , lookup

Test probe wikipedia , lookup

Negative resistance wikipedia , lookup

CMOS wikipedia , lookup

Schmitt trigger wikipedia , lookup

Josephson voltage standard wikipedia , lookup

Two-port network wikipedia , lookup

Operational amplifier wikipedia , lookup

Power electronics wikipedia , lookup

Multimeter wikipedia , lookup

Switched-mode power supply wikipedia , lookup

Wilson current mirror wikipedia , lookup

Voltage regulator wikipedia , lookup

Opto-isolator wikipedia , lookup

TRIAC wikipedia , lookup

Power MOSFET wikipedia , lookup

Surge protector wikipedia , lookup

Resistive opto-isolator wikipedia , lookup

Rectiverter wikipedia , lookup

Current source wikipedia , lookup

Electrical ballast wikipedia , lookup

Current mirror wikipedia , lookup

Ohm's law wikipedia , lookup

Transcript
```Ohm’s Law
V= Voltage (V)
I = Current in amps (A)
R = Resistance in ohm’s (Ω)
For voltage use V= I x R
For current use I = V / R
For resistance use R = V / I
You Try it!

3V is applied across a 6 Ω resistor, what is the current?
Voltage = 3v
Resistance = 6Ω
I (current) = ?
Formula is I = V/R
I = 3V/6 Ω
I = 3/6
= 0.5A

A lamp connected to a 6V battery passes a current of 0.1 A, what is the lamp’s
resistance?
V=6v
I=0.1A
R =?
R=V/I
R = 6 / 0.1
R = 60 Ω

A 1200 Ω resistor passes a current of 0.2 A, what is the voltage across it?
R = 1200Ω
I= 0.2A
V=?
V=IxR
V = 0.2 x 1200
V = 240V
```
Related documents