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Q1. | An RLC series circuit is excited by a step voltage E. The circuit current at t = 0 is |

A. | E/R [Wrong Answer] |

B. | E/LC [Wrong Answer] |

C. | zero [Correct Answer] |

D. | infinity [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss it below :!! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ If a capacitor is charged by a square wave current source the voltage across the capacitor is

triangular wave

step function

zero

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⇒ The threshold voltage of a MOSFET can be lowered by

- using thin gate oxide
- reducing the substrate concentration
- increasing the substrate concentration.

3 alone is correct

1 and 2 are correct

1 and 3 are correct

2 alone is correct

⇒ A potential difference is developed across a current carrying metal strip when the strip is placed in a transverse magnetic field. The above effect is known as

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Photo electric effect

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⇒ The maximum permissible distance between two samples of a 10 kHz signal

100 μ sec

50 μ sec

10 μ sec

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⇒ Which of the following bridges is also used in an oscillator?

Maxwell

Schering

Hay

Wien

⇒

**Assertion (A):** Typical value of thermal resistance from source to sink of an SCR is about 0.3° C/W

**Reason (R):** Heat sinks of thyristors are generally made of aluminium.

Both A and R are correct and R is correct explanation of A

Both A and R correct but R is not correct explanation of A

A is correct but R is wrong

A is wrong but R is correct

⇒ Consider the following program for 8085

`OACH`

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`OADH`

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Y = AB

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Match the following:

List I (Digital circuit) | List II (Circuit type) | ||
---|---|---|---|

A. | BCD to 7 segment decoder | 1. | sequential circuit |

B. | 4-to-1 MUX | 2. | combinational circuit |

C. | 4 bit shift register | 3. | neither sequential nor combinational circuit |

A-2, B-1, C-2, D-1

A-3, B-2, C-1, D-3

A-2, B-2, C-1, D-1

A-3, B-1, C-2, D-3

⇒ The input impedance of CRO is about

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10 Ω

100 Ω

one mega ohm

⇒ A constant

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⇒ Tropospheric scatter is used with frequencies in the range of

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⇒ Leak type bias is used in a plate-modulated class C amplifier to

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⇒ For circuit in figure, which combination of V

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1 mV, 1000 Ω

1 mV, 10 Ω

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1 mV, 10 Ω

⇒ A-P type material has an acceptor ion concentration of 1 x 10

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current through P-N junction reduces

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A-1, B-2, C-3, D-4

A-2, B-3, C-4, D-1

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A-4, B-3, C-2, D-1

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⇒ In the Taylor series expansion of exp(

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⇒ In which of the following 8085 instructions no condition flags are affected?

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⇒ For type 2 system, the magnitude and phase angle of the term (

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⇒ Diamagnetic materials do not have permanent magnetic dipoles.

TRUE

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⇒ The transfer function of transportation lag is

G(

G(

G(

G(

⇒ In the circuit shown in the given figure, power dissipated in the 5 Ω resisto

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⇒ A-P type material has an acceptor ion concentration of 1 x 10

^{16}per cm^{3}. Its intrinsic carrier concentration is 1.48 x 10^{10}/ cm. The hole and electron mobilities are 0.05m^{2}/V-sec and 0.13 m^{2}/V-sec respectively calculate the resistivity of the material12.5 Ω-cm

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0.125 Ω-cm

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Match the following:

List I (Bit Pattern) | List II (Register pairs) | ||
---|---|---|---|

A. | 00 | 1. | SP |

B. | 01 | 2. | B-C |

C. | 10 | 3. | D-E |

D. | 11 | 4. | H-L |

A-1, B-2, C-3, D-4

A-2, B-3, C-4, D-1

A-2, B-3, C-1, D-4

A-4, B-3, C-2, D-1

⇒ In a CRO, the time base signal is applied to

X plates

Y plates

either X or Y plates

alternately X and Y plates

⇒ A tie set schedule shows

incidence of branches to nodes

incidence of branches to loops

incidence of nodes to loops

none of the above

⇒ In the Taylor series expansion of exp(

*x*) + sin(*x*) about the point*x*= p, the coefficient of (*x*- p)^{2}isexp (p)

0.5 exp (p)

exp (p) + 1

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⇒ In which of the following 8085 instructions no condition flags are affected?

`INX `*rp *

`INR `*r*

`SBI data`

`INR M`

⇒ In a network with twelve circuit elements and five nodes, what is the minimum number of mesh equations?

24

12

10

8

⇒ For type 2 system, the magnitude and phase angle of the term (

*j*ω)^{2}in the denominator, at ω = 0, are respectively0 and - 90°

0 and + 90°

infinity and - 180°

infinity and + 180°

⇒ Diamagnetic materials do not have permanent magnetic dipoles.

TRUE

FALSE

⇒ To couple a coaxial line to a parallel wire line, it is best to use a

balun

slotted line

quarter wave transformer

directional coupler

⇒ The transfer function of transportation lag is

G(

*j*ω) =*e*^{jωT }G(

*j*ω) =*e*^{-jωT }G(

*j*ω) = (1 +*j*ωT)G(

*j*ω) = (1 -*j*ωT)⇒ In the circuit shown in the given figure, power dissipated in the 5 Ω resisto

zero

80 W

125 W

405 W