# DC

• Electrical Wiring

## How to Wire ON/OFF Delay Timer for AC & DC Loads – 230V & 24V

Wiring ON and OFF Delay Timer Using AC and DC Supplies – 24VDC & 230V AC As we have already know the difference between ON Delay and OFF delay timer,…

• Batteries

## Why Can’t a 12V Car Battery Electrocute You?

Why is a Car 12V Battery Harmless and No Shock While Touching the Terminals with Bare Hands? As we know that current is responsible to kill, not the voltage. But…

• Protection

## Which One is More Dangerous? 120V or 230V and Why?

Which AC Voltage Level is Safer? 230V or 120V in Domestic and Residential Applications We all know that the domestic and residential voltage levels at the homes are 230V AC…

## Difference between AC and DC (Current & Voltage)

Difference Between AC (Alternating Current) & DC (Direct Current) The Alternating Current (AC) and Direct Current (DC) are the two types of electric currents that coexists in our daily life.…

• Basic Concepts

## What is Electric Current, its Unit, Formula, Types & Applications

Electric Current, its Unit, Formula, Types, Properties, Measurement & Applications In this modern age of technology, almost everything runs on electricity. It plays an important role in our daily life…

• Capacitors

## Why Does A Capacitor Block DC But Pass AC?

Why Does a Capacitor Allow AC and Block DC? One of the most common question asked by electrical engineering students again and again that’s why do capacitors block DC and…

## Why an Inductor acts as a Short Circuit in DC Supply?

What is the Role of Inductor in DC Circuit? In short, there is no frequency in DC supply i.e. frequency in DC = 0. We know that inductive reactance: XL…

## Is Lightning AC or DC ?

Is Lightning Alternating Current (AC) or Direct Current (DC)? Lightning is a transient impulse. It is neither AC nor DC but a combination of both AC and DC. In other…

• Transformer

## Why Can’t a Transformer Be Operated on DC Supply?

What Happens When the Primary of a Transformer is Connected to the DC Supply? A transformer is a device which step-up or step-down the level of AC current or voltage…

• Protection

## What Happens When an AC Line Touches a DC Line?

What Happens When DC Equipment are Operated on AC Voltage and Vice Versa ? AC and DC Mixed Operated Devices There is no simple, one-word answer like ‘Yes’ or ‘No’…