Other slides in this set

Slide 2

Preview of page 2

Here's a taster:

Oscilloscope Traces
time…read more

Slide 3

Preview of page 3

Here's a taster:

Power and Root Mean Square
· Rather than using an instantaneous power value for AC it
is more meaningful to use a time averaged power.
· Therefore, AC current is often expressed as a root mean
square (rms) value, Irms.
· Irms is the value of DC that would give the same heating
effect.…read more

Slide 4

Preview of page 4

Here's a taster:

For a sinusoidal current the mean power over a full cycle is
half the peak power.
· If I0 is the peak current:…read more


No comments have yet been made

Similar Physics resources:

See all Physics resources »See all resources »