1
JEE Main 2022 (Online) 29th June Morning Shift
MCQ (Single Correct Answer)
+4
-1

For a series LCR circuit, I vs $$\omega$$ curve is shown :

(a) To the left of $$\omega$$r, the circuit is mainly capacitive.

(b) To the left of $$\omega$$r, the circuit is mainly inductive.

(c) At $$\omega$$r, impedance of the circuit is equal to the resistance of the circuit.

(d) At $$\omega$$r, impedance of the circuit is 0.

Choose the most appropriate answer from the options given below :

A
(a) and (d) only.
B
(b) and (d) only.
C
(a) and (c) only.
D
(b) and (c) only.
2
JEE Main 2022 (Online) 27th June Evening Shift
MCQ (Single Correct Answer)
+4
-1

If L, C and R are the self inductance, capacitance and resistance respectively, which of the following does not have the dimension of time?

A
RC
B
$${L \over R}$$
C
$$\sqrt{LC}$$
D
$${L \over C}$$
3
JEE Main 2022 (Online) 27th June Morning Shift
MCQ (Single Correct Answer)
+4
-1

The current flowing through an ac circuit is given by

I = 5 sin(120$$\pi$$t)A

How long will the current take to reach the peak value starting from zero?

A
$${1 \over {60}}$$ s
B
60 s
C
$${1 \over {120}}$$ s
D
$${1 \over {240}}$$ s
4
JEE Main 2022 (Online) 25th June Evening Shift
MCQ (Single Correct Answer)
+4
-1

A sinusoidal voltage V(t) = 210 sin 3000 t volt is applied to a series LCR circuit in which L = 10 mH, C = 25 $$\mu$$F and R = 100 $$\Omega$$. The phase difference ($$\Phi$$) between the applied voltage and resultant current will be :

A
tan$$-$$1(0.17)
B
tan$$-$$1(9.46)
C
tan$$-$$1(0.30)
D
tan$$-$$1(13.33)
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12
© ExamGOAL 2024