Explanation

Always select the maximum range of the current meter while measuring the current of an unknown wire.

This prevents potential damage to the meter and ensures accurate measurements if the current is unexpectedly high.

Explanation

A residual-current device (RCD) is widely used in electrical circuits for shock safety.

It detects leakage currents and disconnects the circuit to prevent electric shocks.

Explanation

In electrical cables, AWG stands for American Wire Gauge.

It is a standardized system used to specify the diameter of electrical wires.

Explanation

For high current flow in electrical circuits, one needs thick conductors.

Thick conductors can handle larger currents with lower resistance, reducing heat and power loss.

Explanation

Resistors may be used to reduce current flow and lower voltage levels within circuits.

They provide resistance to the flow of electricity, thereby controlling the amount of current and voltage in a circuit.

Explanation

Materials that block the flow of electrons are called insulators.

They have high resistance and prevent electrical current from flowing through them.

Such as rubber or glass.

Explanation

In electrical companies, to ensure fire safety and avoid danger, a commonly used piece of equipment is a fire extinguisher.

It is essential for quickly addressing electrical fires and preventing their spread.

Explanation

Pressure exerted by the material on a smooth surface is not a factor affecting the resistance of a material.

The resistance is influenced by the type of material, temperature, and cross-sectional area.

Explanation

In case of an electrical shock, providing oxygen is crucial.

Ensure the person is in a safe location.

Then administer CPR and seek medical help immediately.

Explanation

Photo resistors  are light sensitive variable resistors 

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