HAFIZ LUQMAN KHALIL

11053123-032

SINUSOIDAL VOLTAGE AND SINUSOIDAL CURRENT

DIFFERENCE B/W VOLTAGE AND CURRENT:

Voltage is a cause and current is the effect. Current will flow between two points if there is a potential difference between them. If both points are at the same potential then current will not flow across these points.

The current is of two types i.e AC and DC. The current which changes its direction

after every half cycle is known as Alternating current.

But the current which does not change is direction is known as Direct current.

SINUSOIDAL CURRENT

SINUSOIDAL CURRENT The Alternating current is also known as

Sinusoidal current. The current whose amplitude changes with

respect to time is known as Sinusoidal Current.

SINUSOIDAL VOLTAGE The Alternating Voltage is also known as

Sinusoidal Voltage. The voltage which changes with respect to

time is known as Sinusoidal Voltage.

SOME BASIC TERMS USED Amplitude (or peak value) : It is the maximum value,

positive or negative, of an alternating quantity. Instantaneous Value : It is the value of the quantity at

any instant. Time period (T) : It is the duration of one complete

cycle. Frequency (f) : It is the number of cycles that occurs in

one second.

Tf

1

SINUSOIDAL CURRENT

(a) Current I versus angle ωt (b) Current I versus time t.

METHODS OF GENERATION

It is produced due to the change of magnetic flux through the area of a loop.1 . By moving the conductor across the magnetic field.

We can produce alternating current by moving a coil in stationary magnetic field.

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ALTERNATING-VOLTAGE GENERATOR

2. We can produce alternating current by moving a magnetic field around the coil.

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COMPARISON B/W A.C AND D.C

Obtained Flow of electrons Cause of the flow of electrons Current Direction

ADVANTAGES OF A.C Most appliances, lights, and electronic

equipment are configured to operate on AC or "house current"

AC is efficient for long wire runs The wiring and equipment required for safe

distribution of AC power within a home is widely available and much less expensive than its low voltage DC counterpart.

A home wired for AC power is ready for utility or generator power if / when it is available.

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