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Which part of the fine beam tube accelerates the electrons? Cathode? Anode? Wehnelt cylinder?

ByMayuMori

In our notebook, we wrote that the ring-shaped cathode accelerates the electrons. Does that mean the brown circle (1), the anode (2)? Or what else can you see below that's circular and a cathode? The cathode is just this coil, right? (1- notebook entry) (2- Drawn from videos myself) I'm totally confused. Or does "ring-shaped"…

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AMG38
AMG38
1 year ago

Place the switch to the respective position and follow the current. Then you know which lamps shine. Note; When a lamp is short-circuited, the current takes the path over this short-circuit path, so that the lamp cannot light.

Example switch for position 1:

You do this for all the switch positions and write which lamps are illuminating.

For task part b you bring the switch to position 3 and think the lamps as resistors. The individual values are obtained by R=U/I. Consider the calculation rules for series and parallel resistances.

For c, the voltage above the parallel branch under consideration is the same in a parallel circuit.

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