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(a) A few free electrons and holes

current through R_L

30.488A

0.641A flowing from A to B

calculated R value is

\(0.6\Omega\)

The use of A.C. voltage is preferred over the use of D.C. voltage because of the following reasons:

(i) The loss energy in transmitting the A.C. voltage over long distances with the help of step up transformers is negligible as compared to D.C. voltage.

(ii) A.C. voltage can be stepped up and stepped down as per the requirement using a transformer.

The correct answer is: (b) Right

(a) Covalent bond

Apparent weight W₁
= 4.8 kg wt
= 4.8g N
When lift moves upwards,
4.8 g = 4 (g + a)
1.2g = g + a
a = 0.2 g = 0.2 × 9.8
=1.96ms⁻²
When lift moves with 1.96 m  s⁻² upwards

Angular momentum = \(\frac{nh}{2\pi}\) i.e., directly proportional to n.

Since above relation, L is directly proportional to √r

For Lyman series,

\(\frac{1}{\lambda_1}\) = R \((\frac{1}{1^2}-\frac{1}{2^2})\) 

= \(\frac{3}{4}\)R

For Balmer series,

\(\frac{1}{\lambda_1}\) = R \((\frac{1}{2^2}-\frac{1}{3^2})\) 

= \(\frac{5}{36}\)R 

Dividing above two equations,

\(\frac{\lambda_1}{\lambda_2}\) = \(\frac{(5/36)R}{(3/4)R}\) 

= \(\frac{5}{27}\) 

H = \(\frac{V^2t}{R}\)

= V²t.\(\frac{A}{ρl}\)

∴ H ∝ A 

(Area of cross-section)

∴ \(\frac{H_1}{H_2}\) = \(\frac{A_1}{A_2}\) = \(\frac{1}{6}\)

According to the Newton's law of cooling "the rate of loss of heat energy is directly proportional to the temperature difference between the system (body) and surrounding."

Newton’s law  dT/dt = k(T_t – T_s)

Where,

• T_t = temperature of the body at time t and
• T_s = temperature of the surrounding
• k = Positive constant that depends on the area and nature of the surface of the body under consideration.

b. Social loafing

Social loafing influence team work.

a. Ctrl+ Y

The shortcut key for redo is Ctrl+ Y.

d. Affirmative

Affirmative is not the basic communication style.

c. Status bar

On open office Status bar displays information about the current document?

The principle of Authority and responsibility was propounded by Henry Fayol.

c) Spoken words and written material

Communication through Spoken words and written material is called verbal communication.

(d) Self-reflection

Self-reflection does not influences team building.

(c) Gesture

Gesture is not an example of Language Signals.

According to this concept, the employees working at the same level can communicate with each other, after informing their respective superiors. Gang-plank concept.

b) Jargon

Words that are used in a profession, that can influence communication are known as Jargon.

a) Word stress

Word stress giving emphasis to a syllable.

d) Lateral communication

When employees of same level of an organization communicate each other, it is termed as Lateral communication.

Correct answer is

c) 1-b,2-c,3-d,4-a

Correct answer is c. Self-Motivation 

Correct answer is a. Declarative 

Correct option: d. ease allowance

Filter Keys is an accessibility function that tells the keyboard to ignore brief or repeated keystrokes, making typing easier for people with hand tremors.

An economy is called Green economy when it is based on the principles of sustainabledevelopment.

It helps us communicate our emotions like love, shame, sadness, amusement etc.

Stress Management refers to focusing human efforts for maintaining a healthy body and mind capable of better withstanding stressful situations.

Correct option: a. Strength and Vigour

Correct answer is c) 90 ° 

Sheela Rani Chunkath included mobility as a part the literacy drive. The neo-cyclists turned a deaf ear to the hostile remarks from some men.

(d) A current-sensing resistor

A green consumer is someone who is very concerned about the environment and, therefore, only purchases products that are environment-friendly or eco-friendly.