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Q1. | The charge per proton is |

A. | 1.6 x 10^{-19} C [Correct Answer] |

B. | 2.6 x 10^{-19} C [Wrong Answer] |

C. | 0.6 x 10^{-19} C [Wrong Answer] |

D. | 1.6 x 10^{-13} C [Wrong Answer] |

View Answer
Explanation:-
Answer : ADiscuss 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 :**

⇒ The presence of some holes in an intrinsic semiconductor at room temperature is due to

valence electrons

doping

free electrons

thermal energy

⇒ The abbreviation DTL stands for

Digital Timing Logic

Diode Transistor Logic

Dynamic Transient Logic

Delayed Tracking Logic

⇒ The distance at which a sky wave is received back on earth decreases with angle of incidence for all angles of incidence.

TRUE

FALSE

⇒ Which are the pending interrupts?

5.5

6.5

7.5

None

⇒ The time constant of the capacitance circuit is defined as the time during which voltage

falls to 36.8% of its final steady value

rises to 38.6% of its final steady value

rises to 63.2% of its final steady value.

none of the above.

⇒

Match the following:

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

A. | R_{T} | 1. | A = D |

B. | R_{h} | 2. | h_{12} = h_{21} |

C. | S_{T} | 3. | AD - BC = 1 |

D. | S_{h} | 4. | h_{21} = - h_{21} |

5. | B = C | ||

6. | Δh = 1 |

A-3, B-4, C-1, D-6

A-3, B-2, C-5, D-4

A-5, B-4, C-1, D-2

A-5, B-4, C-1, D-6

⇒ A (0.75 -

*j*50) ohm load is connected to a coaxial transmission line of Z

_{0}= 75 ohms at a frequency of 10 GHz Which of the following will be the best method of matching?

Connecting an inductance at the end

Connecting a short circuited stub at the load

Connecting a capacitance at some distance from the load

Connecting a short circuited stub at some specified distance from the load

⇒ It is required to increase the maximum range of a radar by a factor of two. The peak power transmitted in the radar system has to be increased by a factor of

2

4

8

16

⇒ The number of days when Earth's shadow falls on a geosynchronous satellite is

88

277

5

10

⇒ In an RLC series circuit having finite values of RLC, the phase difference between applied voltage and current is

always 0°

between 0 and 180°

between 0 and 90°

always 90°

⇒ For most metals, Fermi level E

_{F}is less than

0.1 eV

2 eV

5 eV

10 eV

⇒ Which part of radio spectrum is more crowded?

Lower frequency part

Higher frequency part

Both (a) and (b)

None of these

⇒ A full adder has two outputs SUM and CARRY.

TRUE

FALSE

⇒ FM signal can be generated by

diode reactance modulator

saturable reactor modulator

reactance tube modulator

none of the above

⇒ Consider the following statements

- The sign of a floating point number depends on the sign of mantissa only.
- If the absolute value of a number is less than 1, the sign of exponent is zero or positive.
- With sign bit of mantissa as 0, increasing the exponent from a positive to a more positive value gives a larger floating point number.

All

1 and 2 only

1 and 3 only

2 and 3 only

⇒ A XOR gate has inputs A and B and output Y. Then the output equation is

Y = AB

Y = AB + A B

Y = A B + A B

Y = A B + A B

⇒ The communicating capacitor reduces turn on time because

it acts as an open circuit

it allows maximum base circuit to flow

it aids in removing the excess carrier from the base region

none of these

⇒ Chrome signals in PAL colour television system consist of

R - Y and B - Y signal

V and U signals

I and Q signals

R - Y and G - Y signals

⇒ If a driving point function N(

*s*) =

*p*(

*s*)/

*q*(

*s*), then

the terms of lowest degree in

*p*(

*s*) and

*q*(

*s*) may differ in degree by zero only

the terms of lowest degree in

*p*(

*s*) and

*q*(

*s*) may differ by one at the most

the terms of lowest degree in

*p*(

*s*) and

*q*(

*s*) may differ in degree by two at the most

the terms of lowest degree in

*p*(

*s*) and

*q*(

*s*) may differ in degree by three at the most

⇒ The effect of earth's magnetic field on radiowaves is minimum when

the electric field lines of radio waves and flux line of earth's magnetic field are in the same direction

the electric field lines of radio waves and flux lines of earth's magnetic field are at right angles

the electric field lines of radiowaves and flux lines of earth's magnetic field oppose each other

both (b) and (c)

⇒ For an amplifier the power gain in decibels will be equal to voltage gain in decibels only when

R

_{0}= 0

R

_{0}= R

_{i}= 90

R

_{0}= R

_{i}

R

_{i}= 0

⇒ An RLC series circuit is fed form 100 V ac supply. Inductance is 1 H and Q = 7.5. At resonance, the voltage across inductance is

750 V

100 V

about 13.5 V

1500 V

⇒ The advantage of Weinbridge oscillator over the phase shift oscillator is that oscillator the frequency may be varied over a range of

0.0430555555555556

0.04375

0.0451388888888889

0.0486111111111111

⇒ A 3 bit binary adder can add

2 bits

2 bits

3 bits

8 bits

⇒ An

*m*derived low pass filter has

*f*

_{c}= 1000 Hz,

*f*

_{∞}= 1250 Hz and

*m*= 0.6. If

*m*is increased, then

both

*f*

_{c}and

*f*

_{∞}will increase

both

*f*

_{c}and

*f*

_{∞}will decrease

*f*

_{c}will remain constant but

*f*

_{∞}will decrease

*f*

_{c}will remain constant but

*f*

_{∞}will increase

⇒ An RLC series circuit is excited by an ac voltage

*v*= 1 sin

*t*. If L = 10 H, C = 0.1 F peak value of voltage across R is

0.707 V

1 V

1.44 V

indeterminate as value of R is not given

⇒

**Assertion (A):** A graph can have many trees.

**Reason (R):** The number of tree branches is equal to number of nodes.

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

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

A is true but R is false

A is false but R is true

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

X plates

Y plates

either X or Y plates

alternately X and Y plates

⇒ The early effect in a BJT is caused by

fast turn on

fast turn off

large collector base reverse bias

large emitter base forward bias

⇒ The voltage at which Avalanche occurs is known as

cut in voltage

barrier voltage

breakdown voltage

depletion voltage