AP EAPCET 2022 - 4th July Evening Shift | Alternating Current Question 2 | Physics

Capacitive reactance of a capacitor in an AC circuit is $$3 \mathrm{k} \Omega$$. If this capacitor is connected to a new AC source of double frequency, the capacitive reactance will become.

$$1.5 \mathrm{k} \Omega$$

$$3 \mathrm{k} \Omega$$

$$6 \mathrm{k} \Omega$$

$$5.2 \mathrm{k} \Omega$$

AP EAPCET 2022 - 4th July Morning Shift

MCQ (Single Correct Answer)

-0

A coil of inductance 0.1 H and resistance $$110 \Omega$$ is connected to a source of 110 V and 350 Hz . The phase difference between the voltage maximum and the current maximum is

$$\tan ^{-1}(1.5)$$

$$\tan ^{-1}(0.5)$$

$$\tan ^{-1}(1.73)$$

$$\tan ^{-1}(2)$$

AP EAPCET 2021 - 20th August Morning Shift

MCQ (Single Correct Answer)

-0

A 20 V AC is applied to a circuit consisting of a resistor and a coil with negligible resistance. If the voltage across the resistor is 12 V, the voltage across the coil is

16 V

10 V

8 V

6 V

AP EAPCET 2021 - 19th August Evening Shift

MCQ (Single Correct Answer)

-0

A bulb of resistance $$280 \Omega$$ is supplied with a 200 V AC supply. What is the peak current?

Nearly $$1 \mathrm{~A}$$

Nearly $$2 \mathrm{~A}$$

Nearly $$1.4 \mathrm{~A}$$

Nearly $$2.8 \mathrm{~A}$$

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