KCET 2022 | Alternating Current Question 6 | Physics

A fully charged capacitor $$C$$ with initial charge $$q_0$$ is connected to a coil of self inductance $$L$$ at $$t=0$$. The time at which the energy is stored equally between the electric and the magnetic field is

$$\sqrt{L C}$$

$$\pi \sqrt{L C}$$

$$\frac{\pi}{4} \sqrt{L C}$$

$$2 \pi \sqrt{L C}$$

KCET 2022

MCQ (Single Correct Answer)

-0

An alternating current is given by $$i=i_1 \sin \omega t+i_2 \cos \omega t$$. The rms current is given by

$$\frac{i_1-i_2}{\sqrt{2}}$$

$$\sqrt{\frac{i_1^2+i_2^2}{2}}$$

$$\sqrt{\frac{i_1^2+i_2^2}{\sqrt{2}}}$$

$$\frac{i_1+i_2}{\sqrt{2}}$$

KCET 2021

MCQ (Single Correct Answer)

-0

What will be the reading in the voltmeter and ammeter of the circuit shown?

KCET 2021 Physics - Alternating Current Question 7 English

90V, 2A

0, 2A

90V, 1A

0, 1A

KCET 2021

MCQ (Single Correct Answer)

-0

LC-oscillations are similar and analogous to the mechanical oscillations of a block attached to a spring. The electrical equivalent of the force constant of the spring is

reciprocal of capacitive reactance

capacitive reactance

reciprocal of capacitance

capacitance

PREVIOUS NEXT

KCET Subjects