La seguridad eléctrica

The video tutorial explains how electric shocks occur and how to protect against them using insulation and creating paths of least resistance. It highlights the use of safety gear like rubber gloves and the role of lightning rods. The tutorial also covers how appliances incorporate insulation and earthing to prevent electric shocks, ensuring safety by providing a direct path to earth and blowing fuses to open circuits.

What is one way to protect ourselves from electric shocks?

• By using wooden sticks

• By standing in water

• By insulating our bodies

• By wearing metal gloves

Why do electricians wear rubber gloves?

• To improve grip on tools

• To prevent electric current from flowing through their hands

• To look professional

• To keep their hands warm

How do lightning rods protect buildings?

• By absorbing the lightning

• By providing a direct path to earth

• By attracting lightning away from the building

• By deflecting lightning into the air

What happens if the insulating material of an appliance is damaged?

• The appliance will become more efficient

• The appliance will overheat

• The appliance may cause an electric shock

• The appliance will stop working

What is the purpose of an earthing connection in appliances?

• To provide a low-resistance path to earth

• To increase the appliance's power

• To reduce noise from the appliance

• To make the appliance lighter