Q9. The same current is flowing in two AC circuits. The first circuit contains a pure inductor and t

Q: What is the correct answer for CUET UG Physics Q9?

The correct answer is d. In an AC circuit, the current depends on the impedance. For a pure inductor, the inductive reactance (XL) is given by XL = ωL = 2πfL, where f is the frequency. If the frequency (f) increases, XL increases. Since current I = V/XL, an increase in XL leads to a decrease in current in the inductive circuit. For a pure capacitor, the capacitive reactance (XC) is given by XC = 1/(ωC) = 1/(2πfC). If the

Q: Q9. The same current is flowing in two AC circuits. The first circuit contains a pure inductor and the second, a capacitor. If the frequency of the AC is increased, then the current will. (a)…

The correct answer is d. In an AC circuit, the current depends on the impedance. For a pure inductor, the inductive reactance (XL) is given by XL = ωL = 2πfL, where f is the frequency. If the frequency (f) increases, XL increases. Since current I = V/XL, an increase in XL leads to a decrease in current in the inductive circuit. For a pure capacitor, the capacitive reactance (XC) is given by XC = 1/(ωC) = 1/(2πfC). If the

Q: What are the options for this CUET UG Physics question?

A. increase in the first but decrease in the second · B. increase in both · C. decrease in both · D. decrease in the first and increase in the second

Question

Q9. The same current is flowing in two AC circuits. The first circuit contains a pure inductor and the second, a capacitor. If the frequency of the AC is increased, then the current will.
(a) increase in the first but decrease in the second
(b) increase in both
(c) decrease in both
(d) decrease in the first and increase in the second

FirstInTest · Accepted Answer

In an AC circuit, the current depends on the impedance. For a pure inductor, the inductive reactance (XL) is given by XL = ωL = 2πfL, where f is the frequency. If the frequency (f) increases, XL increases. Since current I = V/XL, an increase in XL leads to a decrease in current in the inductive circuit. For a pure capacitor, the capacitive reactance (XC) is given by XC = 1/(ωC) = 1/(2πfC). If the frequency (f) increases, XC decreases. Since current I = V/XC, a decrease in XC leads to an increase in current in the capacitive circuit. Therefore, if the frequency of the AC is increased, the current will decrease in the first circuit (inductor) and increase in the second circuit (capacitor). Options (a), (b), and (c) describe incorrect behaviors for the currents.

Answer

increase in the first but decrease in the second

Answer

increase in both

Answer

decrease in both

Answer

decrease in the first and increase in the second

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