AIIMS 2018 | Alternating Current Question 4 | Physics

In a series R-C circuit shown in figure, the applied voltage is 10 V and the voltage across capacitor is found to be 8V. Then, the voltage across R and the phase difference between current and the applied voltage will respectively be

AIIMS 2018 Physics - Alternating Current Question 1 English

$$6 \mathrm{~V}, \tan ^{-1}\left(\frac{4}{3}\right)$$

$$3 V, \tan ^{-1}\left(\frac{3}{4}\right)$$

$$6 \mathrm{~V}, \tan ^{-1}\left(\frac{5}{3}\right)$$

None of these

AIIMS 2018

MCQ (Single Correct Answer)

-0.33

An ideal coil of $$10 \mathrm{~H}$$ is connected in series with a resistance of $$5 \Omega$$ and a battery of $$5 \mathrm{~V}$$. After $$2 \mathrm{~s}$$, after the connection is made, the current flowing (in ampere) in the circuit is

$$(1-e)$$

$$e$$

$$e^{-1}$$

$$\left(1-e^{-1}\right)$$

AIIMS 2018

MCQ (Single Correct Answer)

-0.33

In a circuit $$L, C$$ and $$R$$ are connected in series with an alternating voltage source of frequency $$f$$. The current leads the voltage by $$45^{\circ}$$. The value of $$C$$ is

$$\frac{1}{2 \pi f(2 \pi f L+R)}$$

$$\frac{1}{\pi f(2 \pi f L+R)}$$

$$\frac{1}{2 \pi f(2 \pi f L-R)}$$

$$\frac{1}{\pi f(2 \pi f L-R)}$$

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