It depends on where the capacitor is located. If it is across the emitter resistor, then the gain of the CE amplifier will be higher at higher frequencies.
Remember that gain in the CE amplifier is collector resistance divided by emitter resistance, or hFe, whichever is lower. Placing a capacitor across the emitter resistor will serve to make the effective resistance smaller at higher frequencies, resulting in increased gain, up to the limit of hFe.
If this is not the intended location of the capacitor, then please restate the question and provide the capacitor location.
The purpose of capacitor between emitter to ground is to permit the transis tor to function in the depletion region without the elimination of the Q point.
A: A TRANSISTOR gain is determined by current flow on the collector by adding a resistor to the emitter this current flow is reduced by adding or bypassing this resistor with a capacitor the net effect is that this emitter resistor will be reduced in value as frequency increases therefore change gain as a function of frequency input
Bypassing the emitter resistor with a capacitor in an amplifier configuration effectively removes the negative feedback provided by the resistor at high frequencies. This results in an increase in voltage gain, as the gain is primarily determined by the ratio of the collector and emitter resistances. However, the capacitor only provides this effect at certain frequencies, allowing for improved gain without affecting low-frequency stability. Thus, the overall gain of the amplifier increases at higher frequencies while maintaining lower frequency performance.
A fan relies on a capacitor to create a phase shift in the electrical current, which is essential for starting and maintaining the rotation of the motor. Without the capacitor, the motor lacks the necessary torque to overcome inertia, preventing it from starting or running efficiently. Essentially, the capacitor helps to establish the magnetic fields that allow the fan blades to turn. Without it, the motor may hum but will not rotate.
Without knowing the capacitance of the capacitor, your question cannot be answered.
Without a bypass capacitor it is just equal to Rc
The purpose of capacitor between emitter to ground is to permit the transis tor to function in the depletion region without the elimination of the Q point.
a capacitor that bypasses a BJT's emitter bias resistor so the emitter is at AC ground but has a DC bias voltage on it to set operating conditions. without the bypass, the bias would not stay constant.
A: A TRANSISTOR gain is determined by current flow on the collector by adding a resistor to the emitter this current flow is reduced by adding or bypassing this resistor with a capacitor the net effect is that this emitter resistor will be reduced in value as frequency increases therefore change gain as a function of frequency input
Bypassing the emitter resistor with a capacitor in an amplifier configuration effectively removes the negative feedback provided by the resistor at high frequencies. This results in an increase in voltage gain, as the gain is primarily determined by the ratio of the collector and emitter resistances. However, the capacitor only provides this effect at certain frequencies, allowing for improved gain without affecting low-frequency stability. Thus, the overall gain of the amplifier increases at higher frequencies while maintaining lower frequency performance.
Not necessarily. An object can be a good emitter of heat without being a good reflector of heat. The ability to emit and reflect heat depends on different properties of the material, such as surface texture and composition.
No. You won't be able to start the motor without the capacitor.
A capacitor can be charged without using a resistor by connecting it directly to a power source, such as a battery, which provides a constant voltage. This allows the capacitor to store electrical energy without the need for a resistor to limit the flow of current.
Yes, you can replace a 165 VAC capacitor with a 220 VAC capacitor, as the higher voltage rating means the 220 VAC capacitor can safely handle the voltage without risk of failure. However, ensure that the capacitance value (measured in microfarads) is the same or compatible with the circuit's requirements, as using a capacitor with a different capacitance can affect the circuit's performance. Always check for physical size and mounting compatibility as well.
with or without flux capacitor
less
A fan relies on a capacitor to create a phase shift in the electrical current, which is essential for starting and maintaining the rotation of the motor. Without the capacitor, the motor lacks the necessary torque to overcome inertia, preventing it from starting or running efficiently. Essentially, the capacitor helps to establish the magnetic fields that allow the fan blades to turn. Without it, the motor may hum but will not rotate.