What is the specific resistance of a pure silicon?

Question

What is the specific resistance of a pure silicon?

A. 55 -mm

B. 55 -m

C. 55 -cm

Correct Answer :

C. 55 -cm

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A switch designed to have low capacitance between its terminal when open.

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Which of the following capacitors is suitable for dc filter circuits?

A. Mica

C. Paper

Discuss this answer

What is the specific resistance of a pure silicon?

A. 55 -mm

B. 55 -m

C. 55 -cm

Discuss this answer

Effects of capacitance

Discuss this answer

Metal tin becomes superconductor at approximately

A. 6 K

B. 3.7 K

C. 5 K

D. 4.7K

Discuss this answer

What is the peak factor for alternating current or voltage varying sinusiodally?

A.

B.

Discuss this answer

Which of the following dielectric materials makes the lowest-capacitance capacitor?

A. Paper

B. Mica

C. Air

Discuss this answer

Thevenin�s theorem is what form of an equivalent circuit?

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A capacitor opposes change in

Discuss this answer

A wire of one kilometre length has a resistance of 20 . If the length is halveda then the new resistance is ___ the original resistance.

A. Half

B. Twice

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Another term for superconductor.

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What is the hot resistance of a 100 Wa 220 V incandescent lamp?

A.

B.

Discuss this answer

Why are inductance and capacitance not relevant in a dc circuit?

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What refers to such work at very low temperaturesa near absolute zero?

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A capacitor requires 12 C of charge to raise its potential of 3 V. What is the capacitance of the capacitor?

A. 36 F

B. 15 F

C. 0.25 F

D. 4 F

Discuss this answer

A series RLCcircuit consists of a 10 resistor in series with L = 10 Ha and C= 100 F. Determine a new value of Ia for which the resonant frequency is one ±half the original value.

A. 40 H

B. 40 mH

C. 40 pH

D. 40 nH

Discuss this answer

The Q-factor of a series resonant circuit is also known as

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When the power factor of a circuit is zeroa

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The reason why electrical appliances are connected in parallel.

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In an ac circuit with XL and R in seriesa the

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When frequency of an ac wave decreasesa the value of XLin a coil

Discuss this answer

If a coil has a Q of 10a it means that

Discuss this answer

For series capacitorsa total charge is

Discuss this answer

The internal resistance of an ideal voltage source is

C. Zero

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The arc across a switch when it open an RL circuit is a result of the

Discuss this answer

A 5 F capacitor charge to 5V has a stored charge equal to

A. 1 c

B. 5 c

C. 25 C

D. 200 c

Discuss this answer

An electric circuit contains

Discuss this answer

Which of the following dielectric materials makes the highest-capacitance capacitor?

A. Air

C. Mica

Discuss this answer

Which of the following combination of length and cross-sectional area will give a certain volume of copper the least resistance?

Discuss this answer

Which of the following is not a factor affecting capacitance oor?

Discuss this answer

Answer 1

D. 55 k -m

Answer 2

A. LOCAP switch

Answer 3

B. AntiLOCAP switch

Answer 4

C. Anticapacitance switch

Answer 5

D. Capacitance switch

Answer 6

B. Ceramic

Answer 7

D. Electrolytic

Answer 8

D. 55 k -m

Answer 9

A. It opposes any change in the amount of voltage

Answer 10

B. Voltage is lagged behind the current by a quarter cycle

Answer 11

C. Electric energy is stored in the capacitor in the form of electrostatic field

Answer 12

D. All of the above

Answer 13

D. Electrolyte

Answer 14

A. Current

Answer 15

B. Voltage

Answer 16

C. Both current and voltage

Answer 17

D. Neither current nor voltage

Answer 18

A. Voltage

Answer 19

B. Current

Answer 20

C. Voltage and current

Answer 21

D. Neither voltage nor current

Answer 22

C. One-fourth

Answer 23

D. Three times

Answer 24

A. Generic conductor

Answer 25

B. Ultraconductor

Answer 26

C. Cryotron

Answer 27

D. Cryogenic conductor

Answer 28

A. Because it is a simple circuit

Answer 29

B. Because dc circuits require only resistance as load

Answer 30

C. Because they do not exist in a dc circuit

Answer 31

D. Because frequency of dc is zero

Answer 32

A. Cryogenics

Answer 33

B. Superconductivity

Answer 34

C. Subsonic

Answer 35

D. Thermionic

Answer 36

A. Current magnification factor

Answer 37

B. Voltage magnification factor

Answer 38

C. Load factor

Answer 39

D. Leakage factor

Answer 40

A. Power absorbed is maximum

Answer 41

B. Power absorbed is minimum

Answer 42

C. Power absorbed is zero

Answer 43

D. The impedance is minimum

Answer 44

A. It is a simple circuit

Answer 45

B. This makes the operation of appliances independent with each other

Answer 46

C. This results in reduced power consumption

Answer 47

D. All of the above

Answer 48

A. Voltages across R and XL are in phase

Answer 49

B. Voltage across R lags the voltage across XLby 90°

Answer 50

C. Voltages across R and XL are 180° outof-phase

Answer 51

D. Voltage across R leads the voltage across XLby 90°

Answer 52

A. Approaches zero

Answer 53

B. Gets larger positively

Answer 54

C. Gets larger negatively

Answer 55

D. Stays constant

Answer 56

A. The energy stored in the magnetic field of the coil is 10 times the energy wasted in its resistance

Answer 57

B. The energy wasted in its resistance is 10 times the energy stored in the magnetic field of the coil

Answer 58

C. It is a low Q coil

Answer 59

D. It is a high Q coil

Answer 60

A. The sum of individual charges

Answer 61

B. Equal to the charge of either capacitors

Answer 62

C. Equal to the product of the charges

Answer 63

D. The quotient of the charges

Answer 64

A. Infinite

Answer 65

B. Equal to the load resistance

Answer 66

D. To be determined

Answer 67

A. Large self-induced voltage across L

Answer 68

B. Long time constant

Answer 69

C. Low resistance of the open switch

Answer 70

D. Surge of resistance

Answer 71

A. Passive elements

Answer 72

B. Active elements

Answer 73

C. Both active and passive elements

Answer 74

D. Reactive elements

Answer 75

B. Barium-strontium titanite

Answer 76

D. Electrolyte

Answer 77

A. 2L and1/2 A

Answer 78

B. Does not matter because the volume of copper remains the same

Answer 79

C. L and A

Answer 80

D. ½ L and 2 A

Answer 81

A. Area of plates

Answer 82

B. Number of plates

Answer 83

C. Distance between plates

Answer 84

D. Dielectric material used

What is the specific resistance of a pure silicon?

Correct Answer :

Show all Electrical Circuits MCQ

Related Questions

A switch designed to have low capacitance between its terminal when open.

Which of the following capacitors is suitable for dc filter circuits?

What is the specific resistance of a pure silicon?

Effects of capacitance

Metal tin becomes superconductor at approximately

What is the peak factor for alternating current or voltage varying sinusiodally?

Which of the following dielectric materials makes the lowest-capacitance capacitor?

Thevenin�s theorem is what form of an equivalent circuit?

A capacitor opposes change in

A wire of one kilometre length has a resistance of 20 . If the length is halveda then the new resistance is ___ the original resistance.

Another term for superconductor.

What is the hot resistance of a 100 Wa 220 V incandescent lamp?

Why are inductance and capacitance not relevant in a dc circuit?

What refers to such work at very low temperaturesa near absolute zero?

A capacitor requires 12 C of charge to raise its potential of 3 V. What is the capacitance of the capacitor?

A series RLCcircuit consists of a 10 resistor in series with L = 10 Ha and C= 100 F. Determine a new value of Ia for which the resonant frequency is one ±half the original value.

The Q-factor of a series resonant circuit is also known as

When the power factor of a circuit is zeroa

The reason why electrical appliances are connected in parallel.

In an ac circuit with XL and R in seriesa the

When frequency of an ac wave decreasesa the value of XLin a coil

If a coil has a Q of 10a it means that

For series capacitorsa total charge is

The internal resistance of an ideal voltage source is

The arc across a switch when it open an RL circuit is a result of the

A 5 F capacitor charge to 5V has a stored charge equal to

An electric circuit contains

Which of the following dielectric materials makes the highest-capacitance capacitor?

Which of the following combination of length and cross-sectional area will give a certain volume of copper the least resistance?

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