# CAPACITOR IN SERIES AND CAPACITOR IN PARALLEL

Before go through capacitor in series and capacitor in parallel first check the relation given below

Capacitors act like a short circuited at high frequencies and an open circuited at low frequencies. By the Capacitive reactance formula:

Xc = 1 / 2 π f C

where,

Xc → reactance in ohms (W)

f → frequency in hertz (Hz)

C → capacitance in farads (F)

If capacitor act as open circuit for DC or low frequency signals then how it can be used in DC circuits?

## CAPACITOR IN SERIES AND CAPACITOR IN PARALLEL

Here are two cases:

### CAPACITOR IN SERIES WITH SIGNAL

In this situation, AC is able to pass through, but DC gets blocked. This is commonly called a coupling capacitor.

### CAPACITOR IN PARALLEL WITH SIGNAL

In this situation, DC is able to get through, but AC is shorted to ground causing it to be blocked. This is commonly called a decoupling capacitor.

Now let implement this within the series and parallel circuits (don’t worry about resistor we will see cover this in next topic)

## FOR EXAMPLE

### CAPACITOR IN SERIES – LED WILL NOT GLOW

In series we can see led will not going to glow

### CAPACITOR IN PARALLEL – LED WILL GLOW

In parallel we can see led will glow

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DIFFERENT TYPES OF CAPACITOR

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