Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 10

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A sinusoidal supply of frequency $10 Hz$ and r.m.s. voltage $12 V$ is connected to a $2.1 μ F$ capacitor. What is r.m.s. value of current?

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Important Questions on Alternating Current

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Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 11

In an

L C R

series circuit

R = 10 Ω, X_{L} = 8 Ω

and

X_{C} = 6 Ω

. The total impedance of the circuit is

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Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 12

In a series

R L C

circuit, potential differences across

R, L

and

C

are

30 V, 60 V

and

100 V

respectively as shown in figure. The e.m.f. of source (in volts) is
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Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 13

In a series

R L C

circuit, the r.m.s. voltage across the resistor and the inductor are respectively

400 V

and

700 V .

If the equation for the applied voltage is

ε = 500 \sqrt{2} \sin ω t,

then the peak voltage across the capacitor is
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Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 14

In the following circuit, the emf of source is,

E_{0} = 200 V, R = 20 Ω, L = 0.1 H, C = 10.6 F

and frequency is variable then the current at frequency,

f = 0

and

f = \infty

is

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Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 15

In series

L C R

circuit, the phase difference between voltage across

L

and voltage across

C

is

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Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 16

With increase in frequency of an AC supply, the impedance of an

L C R

series circuit,

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Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 17

The reading of ammeter in the circuit is
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Gamma Question Bank for Medical Physics>Chapter 22 - Alternating Current>Assignment Set-2>Q 18

In a series

L - C

circuit, if

L = 10^{- 3} H

and

C = 3 \times 10^{- 7} F

is connected to a

100 V - 50 Hz

a.c. source, the impedance of the circuit is