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I’m trying to understand some electrical concepts related to working of guitar amps and magnets and I have some questions. I've been reading related concepts for a while from different sources. Most probably short answers will suffice for me.
1) Title : Signals
I read that “Impedance depends on Frequency Of Signals” What does that mean? Do Signals have Impedance in themselves?
2) Title : Tubes
It’s said Cathode is charged with “-“ and Anode is charged with “+”. When filament is heated electrons flow from cathode to anode. When this movement is done cathode should be charged with “+” and anode should be charged is “–“ Isn’t it?
It’s said then electrons in the anode go “-“ terminal and after that “+” terminal of the battery. When the anode is charged with “-“ how those electrons go “-“ terminal of the battery? (Because “-“ push “-“)
3) Title : Signals
Are Current and Signals the same thing? How does current include information about signals in it?
4) Title : Amps
When the amp is off does an electric guitar still send signals to the amp when played?
5) Title : Electricity
How are Electrical devices activated when we pushed the “on” button?
6) Title : Speakers
Are diaphragm, speaker cone and the driver the same thing?
7) Title : Electric And Magnetic Field
“Therefore, they are inter-related in a field called the electromagnetic field. In this field, the electric field and the magnetic field move at right angles to each other However, they are not dependant on each other. They may also exist independently. Without the electric field, the magnetic field exists in permanent magnets and electric fields exist in the form of static electricity, in absence of the magnetic field.”
“Wherever there is electricity, there also electric and magnetic fields, invisible lines of force created by the electric charges. Electric fields result from the strength of the charge while magnetic fields result from the motion of the charge, or the current.”
These two paragraph contradict each other? Don’t they?
8) Title : Usage Of Capacitors
“Power Supply Smoothing : This is the easiest and very widely used application of a capacitor. If you stick a big beefy electrolytic capacitor (the bigger the better), it will fill in all the gaps created by rectifying an AC form, to create a relatively smooth DC. It works by repeatedly charging during the peaks, and discharging during the gaps. However, the more load you put on it, the quicker it wil drain the capacitor and the more ripple you’ll get”
8.1) Why there are gaps and peaks whilst rectification?
“Timing : If you supply power to a capacitor through a resistor, it will take time to charge. If you connect a resistive load to a capacitor, it will take time to discharge. The key thing to understand here about timing circuits is that capacitors appear as though they are shor circuit while they are charging, but as soon as they are charged, they appear to be open circuit.”
8.2) How do capacitors do the Timing job?
“Filtering : If you pass DC through a capacitor, it will charge and then block any further current from flowing. However, if you pass AC through a capacitor, it will flow. How much current flows depends on the frequency of the AC, and the value of the capacitor.
A filter capacitor is an electronic component that removes voltage or signal spikes in electronic circuits. Capacitors are used as filter devices due to their ability to absorb and effectively store electrical charges at predetermined values.”
8.3) When capacitors are charged don’t they transmit the current?
1) Title : Signals
I read that “Impedance depends on Frequency Of Signals” What does that mean? Do Signals have Impedance in themselves?
2) Title : Tubes
It’s said Cathode is charged with “-“ and Anode is charged with “+”. When filament is heated electrons flow from cathode to anode. When this movement is done cathode should be charged with “+” and anode should be charged is “–“ Isn’t it?
It’s said then electrons in the anode go “-“ terminal and after that “+” terminal of the battery. When the anode is charged with “-“ how those electrons go “-“ terminal of the battery? (Because “-“ push “-“)
3) Title : Signals
Are Current and Signals the same thing? How does current include information about signals in it?
4) Title : Amps
When the amp is off does an electric guitar still send signals to the amp when played?
5) Title : Electricity
How are Electrical devices activated when we pushed the “on” button?
6) Title : Speakers
Are diaphragm, speaker cone and the driver the same thing?
7) Title : Electric And Magnetic Field
“Therefore, they are inter-related in a field called the electromagnetic field. In this field, the electric field and the magnetic field move at right angles to each other However, they are not dependant on each other. They may also exist independently. Without the electric field, the magnetic field exists in permanent magnets and electric fields exist in the form of static electricity, in absence of the magnetic field.”
“Wherever there is electricity, there also electric and magnetic fields, invisible lines of force created by the electric charges. Electric fields result from the strength of the charge while magnetic fields result from the motion of the charge, or the current.”
These two paragraph contradict each other? Don’t they?
8) Title : Usage Of Capacitors
“Power Supply Smoothing : This is the easiest and very widely used application of a capacitor. If you stick a big beefy electrolytic capacitor (the bigger the better), it will fill in all the gaps created by rectifying an AC form, to create a relatively smooth DC. It works by repeatedly charging during the peaks, and discharging during the gaps. However, the more load you put on it, the quicker it wil drain the capacitor and the more ripple you’ll get”
8.1) Why there are gaps and peaks whilst rectification?
“Timing : If you supply power to a capacitor through a resistor, it will take time to charge. If you connect a resistive load to a capacitor, it will take time to discharge. The key thing to understand here about timing circuits is that capacitors appear as though they are shor circuit while they are charging, but as soon as they are charged, they appear to be open circuit.”
8.2) How do capacitors do the Timing job?
“Filtering : If you pass DC through a capacitor, it will charge and then block any further current from flowing. However, if you pass AC through a capacitor, it will flow. How much current flows depends on the frequency of the AC, and the value of the capacitor.
A filter capacitor is an electronic component that removes voltage or signal spikes in electronic circuits. Capacitors are used as filter devices due to their ability to absorb and effectively store electrical charges at predetermined values.”
8.3) When capacitors are charged don’t they transmit the current?
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