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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
2
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
$$10 \times 10^{-3} \mathrm{~s}$$
3
KCET 2019
MCQ (Single Correct Answer)
+1
-0

An inductor of inductance $$L$$ and resistor $$R$$ are joined together in series and connected by a source of frequency $$\omega$$. The power dissipated in the circuit is

A
$$\frac{R^2+\omega^2 L^2}{V}$$
B
$$\frac{V^2 R}{R^2+\omega^2 L^2}$$
C
$$\frac{V}{R^2+\omega^2 L^2}$$
D
$$\frac{V^2 R}{\sqrt{R^2+\omega^2 L^2}}$$
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