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Q1. | If absolute potential of A is - 8 V and that of B is - 16 V, V_{AB} is equal to |

A. | 24 V [Wrong Answer] |

B. | 8 V [Correct Answer] |

C. | - 8 V [Wrong Answer] |

D. | - 24 V [Wrong Answer] |

View Answer
Explanation:-
Answer : BDiscuss 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 :**

⇒ A resistor R of 1 Ω and two inductor L

_{1}and L

_{2}of inductances 1 H and 2 H respectively, are connected in parallel. At some time, the current through L

_{1}and L

_{2}are 1 A and 2 A, respectively. The current through R at time

*t*= ∞ will be

zero

0.0416666666666667

0.0833333333333333

0.125

⇒ In mode filter of the given figure which of the following modes is unaffe

TE

_{01}

TE

_{10}

TE

_{11}

all TM

⇒ In two level logic, logic race does not occur.

TRUE

FALSE

⇒

Match the following:

List I | List II | ||
---|---|---|---|

A. | Fourier transform of a Gaussian function | 1. | Gaussian function |

B. | Convolution of a rectangular pulse with itself | 2. | Rectangular pulse |

C. | Current through inductor for step input voltage | 3. | Triangular pulse |

4. | Ramp function | ||

5. | Zero |

A-1, B-2, C-3

A-2, B-4, C-5

A-1, B-3, C-4

A-2, B-3, C-5

⇒

**Assertion (A):** In an intrinsic semiconductor J = (μ_{n} x μ_{p})*en*_{i}.

**Reason (R):** Intrinsic charge concentration *n*_{i} at temperature T is given by *n*_{i}^{2} = A_{0} T^{3} *e*^{-EG0/kT}.

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

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

A is true but R is false

A is false but R is true

⇒ In figure, the position of voltmeter and ammeter are exchanged. It may result in damage

both the instruments

ammeter

voltmeter

neither of two

⇒ Eddy current loss is proportional to

*f*and B

^{2}

_{m}

*f*

^{2}and B

^{2}

_{m}

*f*

^{2}and B

_{m}

*f*and B

_{m}

⇒

**Assertion (A):** In Hall effect the O.C. transverse voltage developed by a current carrying semiconductor with a steady magnetic field perpendicular to the current direction has opposite signs for *n* and *p* semiconductors.

**Reason (R):** The magnetic field pushes both holes and electrons in the same direction.

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

Both A and R are true but R is not a correct explanation of A

A is true but R is false

A is false but R is true

⇒

Match the following:

List I (Command in WORD) | List II (Meaning) | ||
---|---|---|---|

A. | END | 1. | The bar displays the current position of cursor |

B. | HOME | 2. | Moves cursor to the beginning of current line |

C. | Status | 3. | Moves cursor to end of document |

A-1, B-2, C-3

A-3, B-1, C-2

A-2, B-3, C-1

A-3, B-2, C-1

⇒ Gain of an antenna with a circular aperture of diameter 4 meter at frequency of 10 GHz, with directivity 60

60

100

30

90

⇒ Two coupled coils lie in parallel planes such that 50% of magnetic flux produced by one links the other. The coefficient of coupling is

0.5

0.25

0.125

0.5

⇒

Match the following:

List I (Operator) | List II (Description) | ||
---|---|---|---|

A. | & & | 1. | Bitwise inclusive OR |

B. | & | 2. | Bitwise AND |

C. | | | | 3. | Logical AND |

D. | | | 4. | Logical OR |

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

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

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

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

⇒ The Laplace transform of impulse δ(

*t*) is

1

1/

*s*

*s*

1/

*s*

^{2}

⇒ In a number system with radix

*r*, the decimal value of 110 is equal to 4

*r*. The decimal values of 111 and

*r*respective are equal to

20, 5

16, 4

13, 3

8, 2

⇒ Consider isotropic radiator radiating a power of 1 watt. At a distance of 1 metre, the power per unit area with equal

1 watt/m

^{2}

4p watt/m

^{2}

1/4p watt/m

^{2}

2p watt/m

^{2}

⇒ Two voltages 50 V each have a phase difference of 45°. The rms value of resultant sum of the two voltages is

70.7 V

80.4 V

92.4 V

100 V

⇒ A multimeter can be used as ohmmeter.

TRUE

FALSE

⇒ Decimal 43 in hexadecimal and BCD number system is respectively.

B2, 01000011

2B, 01000011

2B, 00110100

B2, 01000100

⇒ The current rating of a cable depends on

length of cable

diameter of cable

both length and diameter of cable

none of the above

⇒ Negative feedback in amplifier

reduces gain

increases frequency and phase distortion

reduces bandwidth

increases noise

⇒ What will be minimum conversion rate in 6 bit dual slope A/D converter uses a reference of -6v and a 1 MHz clock. It uses a fixed count of 40 (101000).

9000

9259

1000

1000

⇒ To ensure that only dominant TE

_{10}mode propagates in a rectangular waveguide, the operating frequency

must be more than cutoff frequency of

*TE*

_{10}mode

must be less than cutoff frequency of

*TE*

_{20}mode

must be more than cutoff frequency of

*TE*

_{10}mode and less than cutoff frequency of TE

_{20}mode

must be less than cutoff frequency of

*TE*

_{10}mode

⇒ If a line having Z

_{0}= 300 ∠ 0 W is open circuited at far end, VSWR is

0

1

∞

2

⇒ A step voltages is applied to RLC series circuit having R = 2 Ω, L = 1 H and C = 1 F. The transient current response will be

over damped

critically damped

under damped

any of the above depending the magnitude of voltage

⇒ Which of the following material can be used in cable shields?

Copper

Aluminium

Cast iron

Lead

⇒ In an R-C circuit, the impedance is 40 Ω at a frequency of 100 Hz. At 200 Hz the impedance should be

40 Ω

80 Ω

20 Ω

more than 20 Ω but less than 40 Ω

⇒ In figure,

*i*(

*t*) is a unit step current. The steady state value of

*v*(

*t*

2 V

3 V

6 V

9 V

⇒ A '

*n*' bit sequence generator employing SR flip-flop has maximum length of the sequence as :

2

^{n}*n*

2

*- 1*

^{n}2

^{n}^{-1}

⇒ Which of the following can be used as a buffer amplifier?

CE

CC

CB

Both (a) and (c)

⇒ Consider the following statements:

- A flip-flop is used to store 1-bit of information.
- Race-around condition occurs in a J-K flip-flop when both the inputs are 1.
- Master-slave configuration is used in flip-flops to store 2-bits of information
- A transparent latch consists of a D-type flip-flop.

1 only

1, 3 and 4

1, 2 and 4

2 and 3 only