I place a resistor and inductor in series across an AC generator. When the gener
ID: 3901842 • Letter: I
Question
I place a resistor and inductor in series across an AC generator. When the generator is set to a very high frequency, which component(s) will have a large amplitude of voltage?
Both the resistor and the inductor will have large maximum voltages across.
The resistor will have a large maximum voltage, but the voltage across the inductor will be zero.
The inductor will have a large maximum voltage, but the voltage across the resistor will be zero.
The resistor and the inductor will both have zero voltages across.
I place a resistor and capacitor in series across an AC generator. When the generator is set to a very high frequency, which component(s) will have a large amplitude of voltage?
Both the resistor and the capacitor will have large maximum voltages across.
The resistor will have a large maximum voltage, but the voltage across the capacitor will be zero.
The capacitor will have a large maximum voltage, but the voltage across the resistor will be zero.
The resistor and the capacitor will both have zero voltages across.
Both the resistor and the inductor will have large maximum voltages across.
The resistor will have a large maximum voltage, but the voltage across the inductor will be zero.
The inductor will have a large maximum voltage, but the voltage across the resistor will be zero.
The resistor and the inductor will both have zero voltages across.
Explanation / Answer
1.
Inductive reactance=2*pi*f*L
whem f gors to infinity,Inductive reactance will tend to infinity
Voltage is directly proportional to reactance.
Hence voltage across inductor will go to infinity
Ans:
The inductor will have a large maximum voltage, but the voltage across the resistor will be zero
2.
capacitive reactance=1/(2*pi*f*c)
whem f gors to infinity,Inductive reactance will tend zero
Voltage is directly proportional to reactance.
Hence voltage across capacitor will go to zero
Ans:
The resistor will have a large maximum voltage, but the voltage across the capacitor will be zero