Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 23

MEDIUM

NEET

IMPORTANT

Earn 100

In an $L C R$ circuit, the resonating frequency is $500 kHz .$ If the value of $L$ is doubled and value of $C$ is decreased to $\frac{1}{8}$ times of its initial values, then the new resonating frequency in $kHz$ will be

50% studentsanswered this correctly

Important Questions on Alternating Current

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 24

In an

L C R

circuit

L = 8.0

henry,

C = 0.5 μ F

and

R = 100 ohm

are in series. The resonance angular frequency is

HARD

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 25

In series,

L C R

circuit voltage leads the current when (Given that

ω_{0} =

resonant angular frequency)

HARD

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 27

In oscillating

L C

circuit, the total stored energy is

U

and maximum charge upon capacitor is

Q .

When the charge upon the capacitor is

\frac{Q}{2},

the energy stored in the inductor is

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 1

For an

A C

circuit containing inductor only as shown. The graph of inductive reactance

(X_{L})

vs frequency

(f)

of an

A C

source is

Question Image

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 2

In an

A C

circuit, only a resistor of resistance

15 Ω

is present. If voltage applied is

V = 150 \sin (50 t)

volt then rms current is

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 3

Electrical inertia of coil is

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 4

In a purely inductive circuit, the current:

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 5

The mean value of current

I = I_{0} \cos ω t

from

t = 0

to

t = \frac{π}{ω}

is