Cathode
noun
A part in an electronic device where electrons enter.
The cathode is marked by a minus sign in the battery.
Often appears as...
- cathode ray
- cathode terminal
Usage tips
Technical
noun
The negatively charged electrode in an electrical device, such as a battery.
In electrolysis, the cathode attracts cations or positive charge.
Often appears as...
- cathode reaction
- cathode material
Usage tips
Technical
noun
The electrode in a vacuum tube, from which electrons are travelled to the anode.
The temperature of the cathode in a vacuum tube significantly affects its operation.
Often appears as...
- cathode heating
- cathode voltage
Usage tips
Technical
noun
A part in an electronic device where electrons enter.
The cathode is marked by a minus sign in the battery.
Often appears as...
- cathode ray
- cathode terminal
Usage tips
Technical
noun
The negatively charged electrode in an electrical device, such as a battery.
In electrolysis, the cathode attracts cations or positive charge.
Often appears as...
- cathode reaction
- cathode material
Usage tips
Technical
noun
The electrode in a vacuum tube, from which electrons are travelled to the anode.
The temperature of the cathode in a vacuum tube significantly affects its operation.
Often appears as...
- cathode heating
- cathode voltage
Usage tips
Technical
Definition 1 of 3
Pro Tip 1/3Device Function
Understanding 'cathode' helps explain how devices like batteries work.
The flashlight stopped working because the cathode in the battery has depleted.
Pro Tip 2/3Minus Sign
'Cathode' is often associated with the negative (-) sign in diagrams or on devices.
Make sure the cathode side is aligned with the minus sign in your remote's battery compartment.
Pro Tip 3/3Technical Context
'Cathode' is a technical term used in physics-related fields and documentation.
Can you locate the cathode on this circuit diagram?
Pro Tip 1/3Device Function
Understanding 'cathode' helps explain how devices like batteries work.
The flashlight stopped working because the cathode in the battery has depleted.
Pro Tip 2/3Minus Sign
'Cathode' is often associated with the negative (-) sign in diagrams or on devices.
Make sure the cathode side is aligned with the minus sign in your remote's battery compartment.
Pro Tip 3/3Technical Context
'Cathode' is a technical term used in physics-related fields and documentation.
Can you locate the cathode on this circuit diagram?
Pro Tip 1/3Device Function
Understanding 'cathode' helps explain how devices like batteries work.
The flashlight stopped working because the cathode in the battery has depleted.
Pro Tip 2/3Minus Sign
'Cathode' is often associated with the negative (-) sign in diagrams or on devices.
Make sure the cathode side is aligned with the minus sign in your remote's battery compartment.
Pro Tip 3/3Technical Context
'Cathode' is a technical term used in physics-related fields and documentation.
Can you locate the cathode on this circuit diagram?
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Video examples
How transistors work -...
If the anode is at a slightly higher positive potential, the electrons are attracted to it, completing the circuit. This unidirectional current flow could be controlled by varying the voltage to the cathode, which makes it release more or less electrons.
Video examples
George Dyson: The birth...
Reports were issued, so that this machine was cloned at 15 other places around the world. And it really was. It was the original microprocessor. All the computers now are copies of that machine. The memory was in cathode ray tubes --
Video examples
How transistors work -...
If the anode is at a slightly higher positive potential, the electrons are attracted to it, completing the circuit. This unidirectional current flow could be controlled by varying the voltage to the cathode, which makes it release more or less electrons.
Video examples
George Dyson: The birth...
Reports were issued, so that this machine was cloned at 15 other places around the world. And it really was. It was the original microprocessor. All the computers now are copies of that machine. The memory was in cathode ray tubes --
Example 1 of 2
Quote examples
Helen Baxendale
English Actress
We've still got a cathode ray TV with a big back. An ancient, massive thing. All our teenagers' friends come round and say the TV's really cool. The picture is so much better than HD TVs - everything looks like film. It's not digital, and we still haven't got Netflix. It's too confusing.
Quote examples
Helen Baxendale
English Actress
We've still got a cathode ray TV with a big back. An ancient, massive thing. All our teenagers' friends come round and say the TV's really cool. The picture is so much better than HD TVs - everything looks like film. It's not digital, and we still haven't got Netflix. It's too confusing.
Example 1 of 1
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