1
KCET 2020
MCQ (Single Correct Answer)
+1
-0

The power factor of $$R-L$$ circuit is $$\frac{1}{\sqrt{3}}$$. If the inductive reactance is $$2 \Omega$$. The value of resistance is

A
$$2 \Omega$$
B
$$\sqrt{2} \Omega$$
C
$$0.5 \Omega$$
D
$$\frac{1}{\sqrt{2}} \Omega$$
2
KCET 2020
MCQ (Single Correct Answer)
+1
-0

In the given circuit, the resonant frequency is

KCET 2020 Physics - Alternating Current Question 4 English

A
15.92 Hz
B
159.2 Hz
C
1592 Hz
D
15910 Hz
3
KCET 2020
MCQ (Single Correct Answer)
+1
-0

A $$220 \mathrm{~V}$$ AC supply is connected between points $$A$$ and $$B$$ as shown in figure, what will be the potential difference $$V$$ across the capacitor?

KCET 2020 Physics - Alternating Current Question 5 English

A
220 V
B
110 V
C
zero
D
220$$\sqrt2$$ V
4
KCET 2019
MCQ (Single Correct Answer)
+1
-0

The frequency of an alternating current is $$50 \mathrm{~Hz}$$. What is the minimum time taken by current to reach its peak value from rms value?

A
$$5 \times 10^{-3} \mathrm{~s}$$
B
$$2.5 \times 10^{-3} \mathrm{~s}$$
C
$$0.02 \mathrm{~s}$$
D
$$10 \times 10^{-3} \mathrm{~s}$$
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