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When a lamp is switched off is the electrical current to the light open or closed?
Open and closed does not refer to electrical current or the flow of electricity. Open or closed refers to the state of an electrical circuit.
When a lamp is turned on electricity flows through wires, the switch and the lamp; and the circuit is considered closed. When a lamp is switched off the circuit is considered open (or broken) and the flow of electric current is stopped.
What else can I help you with?
Why is a light bulb not on when a switch is not closed?
A closed switch completes the electrical circuit, allowing current to flow through the light bulb and generate light. If the switch is not closed, there is an open circuit, meaning the current cannot flow and the light bulb does not turn on.
Where does the switched live go in a ceiling light?
The switched live wire in a ceiling light typically connects to the live terminal of the light fixture. This wire carries the electrical current and is controlled by the light switch to turn the light on and off. Make sure to turn off the power before making any electrical connections.
When a light switch is turned on what is done to the curcuit?
When a light switched is turned on the circuit is usually closed.
What happens when the torch is switched on?
current flows and we have light from bulb....
Why the circuit should close for the light bulb to light up?
The circuit needs to be closed for the light bulb to light up because it allows current to flow uninterrupted from the power source through the light bulb, which then converts electrical energy into light and heat. If the circuit is open, the flow of current is interrupted, and the light bulb will not receive the necessary electrical energy to produce light.
Plug a lamp into an electrical socket and you turn electrical energy into this form of energy?
-- None at all if the lamp is switched off.-- If the lamp is switched on, then electrical energy is turned into a little bit ofvisible light energy and a comparatively larger quantity of heat energy.
What happens to the energy in a torch once it is switched on?
When a torch is switched on, the electrical energy from the battery is converted to light energy and heat energy. The electrical energy powers the light source (such as LEDs or a bulb) to produce light, and a small portion of the energy is also dissipated as heat.
What does the green light on the Nintendo DSi mean?
That's just the 'on' light to show the DSi is switched on, even when the lid is closed.
Why does the bathroom light spark when switched on?
You will find a loose electrical connection where the spark is occuring.
What energy changes in a bulb?
In a light bulb, electrical energy is converted into light energy and heat energy. When the circuit is closed, the electrical current flows through the filament in the bulb, causing it to heat up and emit light. Some of the electrical energy is also lost as heat due to the resistance in the filament.
Why does room light turn on at once as the switch is close?
When the switch is closed, it completes the electrical circuit, allowing current to flow instantly to the light fixture. This immediate flow of electricity energizes the light bulb, causing it to illuminate right away. The speed of electrical current is nearly instantaneous, resulting in the light turning on almost immediately after the switch is activated.
When a switch is closed its contact have a?
When a switch is closed, its contacts have a complete electrical connection, allowing current to flow through the circuit. This completes the circuit and allows for the operation of whatever the switch is controlling, such as a light or motor.
