Which of the following factors does Not affect the value of self inductance of a solenoid?

Two concentric coils, each of radius \( 2\pi \, \text{cm} \), are placed at right angles to each other. Currents of 3 A and 4 A respectively are flowing through the two coils. The magnetic induction at the center of the coils will be:

A long solenoid has 500 turns. When a current of 2 A is passed through it, the resulting magnetic flux linked with each turn of the solenoid is \(4 \times 10^{-3} Wb\). The self-inductance of the solenoid is

The work done by the field of a nucleus in a complete circular orbit of the electron is

You are given a transformer that has 800 turns on its primary coil and 64 turns on its secondary coil. A voltage of 220 V is applied to the primary coil. What is the output voltage?

The terminal voltages of a cell are found to be 29 V and 28 V when it delivers currents of 1 A and 2 A, respectively. The emf and the internal resistance of the cell are, respectively:

The magnetic flux density at a point on the axis of a long solenoid having 1000 turns \(/ m\) when it is carrying a current of 3.4 A is nearly,

Read the passage carefully and answer the questions based on the passage:
Alcohols are versatile compounds as they can act as both nucleophile and electrophile. They undergo reactions based on cleavage of O-H and C-O bonds. The cleavage of O-H bond reflects the acidic character of alcohols. However they are weaker acids than water, phenol and carboxylic acids. Alkoxide ion formed by loss of proton from the OH group of alcohols reacts with water to form the corresponding conjugate acid - base pair. They act as Bronsted base due to presence of unshared electron pairs on oxygen.Both alcohols and phenol react with carboxylic acids, acid chlorides and anhydrides to form esters. The introduction of acetyl group in alcohols or phenol is known as acetylation. Alcohols react with hydrogen halides to form alkyl halides which form the basis of Lucas test. They also undergo acid catalyzed dehydration to form alkenes. Alcohols can be easily oxidized with variety of oxidizing agents. The nature of the product depends on the type of oxidizing agent and the nature of alcohol.
Identify the most acidic alcohol among the following:

The storage battery of a car has an emf of 10 V. If the internal resistance of the battery is \( 0.2 \Omega \), then the maximum current that can be drawn from the battery is

Kinetic energies of four particles a, b, c, d of equal masses are given below. Arrange them in order of their decreasing de-Broglie wavelengths.
(A) \((KE)_a = 1 \text{ eV}\)
(B) \((KE)_b = 0.01 \text{ eV}\)
(C) \((KE)_c = 4 \text{ eV}\)
(D) \((KE)_d = 16 \text{ eV}\)
Choose the correct answer from the options given below:

Which of the following will increase the mobility of charge carriers?

Match List I with List II.

LIST I	LIST II
A. Epidermophyton sp.	I. Typhoid
B. Haemophilus influenzae	II. Elephantiasis
C. Wuchereria malayi	III. Ringworm
D. Salmonella sp.	IV. Pneumonia

Choose the correct answer from the options given below:

The kinetic energy of an electron in the ground state of a hydrogen atom is K. The values of its potential energy and total energy respectively are :