Explore topic-wise InterviewSolutions in Current Affairs.

R = 20 Ω
V = 220 sin (100πt)
we know that V = V. sin(ωt)
I = V. sin(ωt) / R
I = 220 sin (100πt) / 20
I = 11 sin (100πt)
Also I_rms = I_peak sin (100πt) and I_rms = I_peak / √ 2
I_peak sin (100πt) = I_peak / √ 2
100πt = π / 4
t = 1 / (4x100)
t = 1 / 400
t = 0.0025 = 2.5 x 10^-3

(a) Decrease

• For temperature above transition temperature T_c a superconductor transforms to normal conductor.
• When applied magnetic field is greater than the critical magnetic field H > H_c a super conductor becomes a normal conductor.
• High T_c super conductors have T_c > 50° K

Attitude is the manner, disposition, feeling and position with regard to a person or thing, tendency or orientation especially in the mind.  

According to Gordon Allport, “An attitude is a mental and neural state of readiness, organized through experience, exerting a directive or dynamic influence upon the individual’s response to all objects and situations with which it is related.”

Frank Freeman said, “An attitude is a dispositional readiness to respond to certain institutions, persons or objects in a consistent manner which has been learned and has become one’s typical mode of response.”

Job satisfaction depends on several different factors such as satisfaction with pay, promotion opportunities, fringe benefits, job security, relationship with co-workers and supervisors, etc. Factors affecting the level of job satisfaction are; Working Environment. Fair Policies and Practice.

Stars produce heat energy and light due to the fusion of Hydrogen

Given:

Side of the field = 100 km

Calculations:

The total distance traveled = 4 × 100 = 400 km

Let the initial speed of the train = x km/hr

Actual time taken by the train =  400/x hrs

If it increases its speed by 25% , new speed will be ;

⇒ x + 25/100 x = x + x/4 = 5x/4

Time taken at increased speed = 400/(5x/4) = 1600/5x

According to question , 400/x – 1600/5x = 10     

⇒ 2000/5x – 1600/5x = 10

⇒  8 km/hr    

Stars appear to move from east to west in the sky.

An okazaki fragment contains about 1,000 Nucleotides.

Ursa Major moves around the Pole Star

c) International Astronomical Union

Saturn is least dense among all the planets.

The axis of the Earth is inclined to its orbital plane at an angle of  66.5°.

e_o = 8.85 * 10 ^-12  

E = 300 V/m 

 ψ = E * Area = q / e_o   

σ = E*e_o = q/Area  

= E * e_o  

= 2.655*10^-9 C/m²

The S.I. unit of magnetic field is Tesla. 

The frequency of an alternating current is 50 Hz. 

Electric fuse saves the circuit from High current flowing during short circuit.

Red colour of light the wave length is maximum.

An action of adjustment in eye lens is done by ciliary muscles. 

The refractive index of diamond is 2.42.

The power of a lens of focal length f is 1/f.

The image of object is always same, The mirror will be plane.

Focal length of a concave lens is 50 cm. Its power will be –2 Dioptre.

5 faces of a simple prism are bounded.

Walt-hour is unit of energy.

Tungsten element is used in filament of electric bulb. 

Live wire is generally of red colour.

In acidic hydrolysis of ester it is heated with dilute acid (such as dil. HCl, H₂SO₄ ). On reaction to water ethanoic acid and ethanol are formed and the mixture is in equilibrium.

But in alkaline hydrolysis of ester it is heated with a dilute alkali (such as NaOH). It is one way reaction. The products can easily be separated. As a result sodium salt is formed.

Now the theme:

Acid hydrolysis of an ester produces a carboxylic acid which is a weak acid. This means that it does not ionize fully when dissolved in water. That means the reverse reaction that produces the ester is favored. On the other hand, alkaline hydrolysis produces a carboxylate salt which ionizes fully and signals that the reaction has gone to completion. 

Electric motor converts Electrical energy into mechanical energy.

The suitable material to make electromagnet is soft iron.

The equivalent resistance of two resistance 10Ω and 20 Ω in series combination is 30Ω.

Let velocity be V

Initial wavelength =h/mv  = l (let)

New velocity = 3V 

New wavelength = h/3mv = l/3

Decrease in wavelength = 2l/3 

%decrease = (2l/3)/l *100 = 200/3%

let  the total time of fall of the body be t sec then

In t sec it falls (1/2)gt² and in t-2 sec it falls 1/2 g(t-2)² 

so by the given condition

(1/2)gt^{2 -}1/2 g(t-2)² =40

=>1/2g(t²-t²+2t-4)=40

=>10t-20=40 [ taking g=10m/s²]

=> t=6 sec

Hence height of the tower H = 1/2x10x6²  = 180m

Correct answer is birds

Correct answer is insects

Correct answer is occupations

Correct option is D) All of the

Correct option is C) we/it/them

Correct option is B) out

1  A) Living with Blindness

2  A) something Mary had not expected

3  C) present when she has been born

Correct option is D) Being able to 

Correct option is A) at

Correct option is D) had to

1  C) new realizations made in all areas of the world about changes in nature

2  C) because people can see the damage to nature

3  D) is trying to prevent the loss of nature

Correct option is C) up

First cricketer to be dope-tested

Correct answer is Uttarkashi

1  D) was a mature actor

2  E) lasted for forty years.

3  C) was suitable for the roles of a confident leader.

1  C) there was moment by moment coverage of a war which was shown on television.

2  E) the CNN reporter who told the world what was happening in the capital of Iraq.

3  A) were never cut off

Correct option is A) they all looked as tired as I felt.