Electromagnetic Induction & Alternating Currents-Reactance and Impedance (AIIMS Physics): Questions 1 - 6 of 9

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Question number: 1

» Electromagnetic Induction & Alternating Currents » Reactance and Impedance

Appeared in Year: 1997

MCQ▾

Question

A choke coil should have – [AIIMS 1999]

Choices

Choice (4) Response
a.

Low resistance and high inductance

b.

High resistance and low inductance

c.

Low inductance and low resistance

d.

High resistance and high inductance

Question number: 2

» Electromagnetic Induction & Alternating Currents » Reactance and Impedance

Appeared in Year: 2001

MCQ▾

Question

The coil of choke in a circuit: [AIIMS]

Choices

Choice (4) Response
a.

Increases the current

b.

Does not change the current

c.

Decrease the current

d.

Has high resistance to d c circuit

Question number: 3

» Electromagnetic Induction & Alternating Currents » Reactance and Impedance

Appeared in Year: 2000

MCQ▾

Question

The impedance of a circuit, when a resistance R and an inductor of inductance L are connected in series in an A. C. circuit of frequency (f) is – (AIIMS)

Choices

Choice (4) Response
a.

R2+4π2f2L2

b.

R2+2π2f2L2

c.

R+4πfL2

d.

R+16π2f2L2

Question number: 4

» Electromagnetic Induction & Alternating Currents » Reactance and Impedance

Appeared in Year: 1995

MCQ▾

Question

The reactance of an inductance of 0.01H for 50 Hz A. C. is – [AIIMS]

Choices

Choice (4) Response
a.

0.84 Ω

b.

3.14 Ω

c.

1.57 Ω

d.

6.28 Ω

Question number: 5

» Electromagnetic Induction & Alternating Currents » Reactance and Impedance

MCQ▾

Question

The reactance of an inductance of 0.05H for 100 Hz A. C. is –

Choices

Choice (4) Response
a.

31.4 Ω

b.

6.28 Ω

c.

3.14 Ω

d.

62.8 Ω

Question number: 6

» Electromagnetic Induction & Alternating Currents » Reactance and Impedance

MCQ▾

Question

The impedance of a circuit, when a resistance 2KΩ and a capacitor of capacitance 1μF are connected in series in an A. C. circuit of frequency 50 Hz is –

Choices

Choice (4) Response
a.

15.33×103Ω

b.

3.75×103Ω

c.

21.0×103Ω

d.

10.13×103Ω

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