Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 59

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IMPORTANT

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Calculate the maximum current in the circuit, if a capacitor of capacitance $1 μ F$ is charged to a potential of $2 V$ and is connected in parallel to an inductor of inductance $10^{- 3} H$

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Important Questions on Alternating Current

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IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 60

The inductance of the oscillatory circuit of the ratio station is

10 mH

and its capacitance is

0.25 μF

. Taking the effect of resistance negligible, wavelength of the broadcasted waves will be (velocity of light

= 3.0 \times 10^{8} m s^{- 1}, π = 3.14

),

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Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 61

An inductor

L

is allowed to discharge through a capacitor

C

. The emf induced across the inductor, when the capacitor is fully charged, is

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Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 62

The carrier frequency generated by a tank circuit containing

1 nF

capacitor and

10 μH

inductor is

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Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 63

A charged

30 μ F

capacitor is connected to a

27 m H

inductor. The angular frequency of free oscillations of the circuit is

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IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 64

In an oscillating

L C

circuit, the maximum charge on the capacitor is

Q

. The charge on the capacitor when the energy is stored equally between the electric and magnetic fields is

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Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 65

\frac{20}{π^{2}} H

inductor is connected to a capacitor of capacitance

C

. The value of

C

in order to impart maximum power at

50 Hz

is

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Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 66

Same current flows in two separate AC circuits. The first circuit contains inductance only, while the second contains capacitance only. If the frequency of the applied voltage increases, the current

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Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 67

The unit of

\sqrt{LC}

is :