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1
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

For series LCR circuit, which one of the following is a CORRECT statement?

A
Potential difference across resistance $$\mathrm{R}$$ and that across capacitor have phase difference $$\frac{\pi^{\mathrm{c}}}{2}$$.
B
Applied e.m.f. and potential difference across resistance '$$R$$' are in the same phase
C
Applied e.m.f. and potential difference inductor coil has phase difference of $$\frac{\pi^{\mathrm{c}}}{2}$$
D
Potential difference across capacitor and that across inductor have phase difference of $$\frac{\pi^{\mathrm{c}}}{2}$$.
2
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

In an LCR series a.c. circuit, the voltage across each of the components L, C and R is 60 V. The voltage across the LC combination is

A
120 V
B
60 V
C
zero V
D
$$\frac{60}{\sqrt{3}}$$ V
3
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

If we increase the frequency of an a.c. supply, then inductive reactance

A
increases directly with the square of frequency
B
increases as it directly proportional to frequency
C
decreases inversely with the square of frequency
D
decreases as it is inversely proportional to the frequency
4
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A capacitor of capacity '$$C$$' is charged to a potential '$$V$$'. It is connected in parallel to an inductor of inductance '$$\mathrm{L}$$'. The maximum current that will flow in the circuit is

A
$$V \sqrt{\frac{L}{C}}$$
B
$$\mathrm{V} \sqrt{\mathrm{LC}}$$
C
$$V \sqrt{\frac{C}{L}}$$
D
$$\frac{\mathrm{VC}^2}{\mathrm{~L}}$$
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