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Q1. | Hall effect is observed in a specimen when it is carrying current and is placed in a magnetic field. The resulting electric field inside the speciment will be in |

A. | direction normal to both current and magnetic field [Correct Answer] |

B. | the direction of current [Wrong Answer] |

C. | direction antiparallel to magnetic field [Wrong Answer] |

D. | an arbitrary direction depend upon conductivity [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 :**

⇒ A device that converts from decimal to binary numbered is called

decoder

encoder

CPU

converter

⇒ Consider the following statements about Rhombic antenna

- It is non resonant
- It is a broad band antenna
- It is ideally suited for HF transmission

1, 2, 3

1, 3 only

2, 3 only

1 only

⇒ The total number of fundamental products of three variables is

3

5

8

16

⇒ In figure, voltage across R

_{2}= + 10 V. If V

_{BE}= 0.7 V and V

_{E}= 0.7 V and R

_{E}= 10 kΩ, current through R

_{E1 mA0.93 mA2 mA1.86 mA}

⇒ Two sinusoidal signals of same amplitude and frequencies 10 kHz and 10.1 kHz are added together. The combined signal is given to an ideal frequency detector. The output of the detector is

0.1 kHz sinusoidal

10.1 kHz sinusoidal

a linear function

a constant

⇒ In figure, the switch is closed at

*t*= 0. After some time

*i*= 6A and rate of change of current was 4A/s. The value of inducto

1 H

1.5 H

indeterminate

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⇒ The poles and zeros of a positive real function

may lie any where in

*s*plane

may have positive or negative real part

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⇒ The standard deviation of a set of observations is the rms value of the deviation from the arithmetic mean.

TRUE

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⇒ Consider the CMOS circuit shown, where the gate voltage V

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⇒ The materials having low retentivity are suitable for making

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weak magnets

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both temporary and permanent magnets

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TTL

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⇒ The polar plot of P (

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a straight line parallel to

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⇒ The decimal equivalent of binary 1101.11 is

9.75

13.75

11.5

11.75

⇒

**Assertion (A):** Positive feedback is not used in any circuit.

**Reason (R):** Positive feedback leads to instability.

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

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

A is correct but R is wrong

R is correct but A is wrong

⇒ For a reflection co-efficient of 0.5, the value of SWR is

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1

2

3

⇒ If absolute potential of A is - 8 V and that of B is - 16 V, V

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24 V

8 V

- 8 V

- 24 V

⇒ Find E at P(1, 1, 1) caused by four identical 3

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21.58

*a*

*+ 21.58*

_{x}*a*

*+ 12*

_{y}*a*

*V/m*

_{z}6.82

*a*

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_{x}*a*

*+ 32.89*

_{y}*a*

*V/m*

_{z}-6.82

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⇒ The function of shunt in an ammeter is to

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increase sensitivity of meter

increase resistance of meter

all of the above

⇒ A half wave diode rectifier has a capacitance input filter. If input voltage is V

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V

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_{m}

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4 V

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⇒ An earth mat for a communication tower consists of

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7

8

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11

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dark grey and brown

grey and brown

dark brown and grey

⇒ A rectangular waveguide, in dominant TE mode, has dimensions 10

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*z*

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*z*

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*z*

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*z*