Hello, this is a circuit of a common base amplifier. I was wondering what the arrow in the picture was referencing to. Is that a capacitor from the base to the collector?

 

Vcb and Vce is the Voltage across the Collector and Base, it's a battery supply.

 

Vcb and Vce is the Voltage across the Collector and Base, it's a battery supply.

That is correct, but a rather strange way of describe how it is. Base current normally flows through the emitter, the direction depends on PNP or NPN. So very seldom is a battery shown like in that drawing. That looks like a You tube circuit.

 

That is correct, but a rather strange way of describe how it is. Base current normally flows through the emitter, the direction depends on PNP or NPN. So very seldom is a battery shown like in that drawing. That looks like a You tube circuit.

https://www.electronics-tutorials.ws/amplifier/common-base-amplifier.html

 

It helps to redraw it in a more conventional layout:



A more practical arrangement puts a +ve bias on the base (instead of a -ve bias on the emitter), via voltage divider R1/R2, decoupled by C3 for the AC signal.