Welcome to Physics Inductance NEET MCQ, In this collection of multiple-choice questions (MCQs), each question is thoughtfully paired with not only the correct answer but also a comprehensive explanation. Specifically designed for NEET (National Eligibility-cum-Entrance Test) preparation, these MCQs serve to both assess your knowledge of inductance and provide you with an in-depth understanding of this crucial topic.

## 1. What does inductance primarily depend on?

### Answer:

### Explanation:

Inductance mainly depends on the number of turns in a coil. Although other factors can influence it, the number of turns plays a significant role.

## 2. The SI unit of inductance is:

### Answer:

### Explanation:

The standard unit for inductance is the Henry, named after Joseph Henry.

## 3. Self-inductance is a phenomenon in which:

### Answer:

### Explanation:

Self-inductance refers to the property where a changing magnetic field within a coil induces an electromotive force (EMF) in that same coil.

## 4. Mutual inductance is best described by which of the following?

### Answer:

### Explanation:

Mutual inductance occurs when a change in current in one coil induces a voltage in another nearby coil.

## 5. Which of the following materials would enhance the inductance of a coil when used as its core?

### Answer:

### Explanation:

Iron, being a ferromagnetic material, increases the magnetic field and thus the inductance of the coil.

## 6. The inductance of a coil is inversely proportional to:

### Answer:

### Explanation:

The inductance decreases as the length of the coil increases, making them inversely proportional.

## 7. A coil has a self-inductance of 2 Henry. If the current changes at a rate of 3 A/s, the induced EMF will be:

### Answer:

### Explanation:

Induced EMF = L * (ΔI/Δt) = 2 * 3 = 6 V.

## 8. In a DC circuit, an ideal inductor behaves as:

### Answer:

### Explanation:

In a DC circuit, once steady state is reached, an ideal inductor offers no resistance and behaves as a short circuit.

## 9. Which component opposes the rapid change of current in a circuit?

### Answer:

### Explanation:

Due to its property of inductance, an inductor opposes rapid changes in current.

## 10. The energy stored in an inductor can be given by:

### Answer:

### Explanation:

The energy (W) stored in an inductor is given by W = (1/2) * L * I^2.

## 11. If the number of turns in a coil is doubled, its inductance will:

### Answer:

### Explanation:

Inductance is proportional to the square of the number of turns. Doubling the turns will quadruple the inductance.

## 12. An ideal inductor:

### Answer:

### Explanation:

An ideal inductor does not have resistance and does not dissipate energy as heat. It stores energy in its magnetic field.

## 13. The self-inductance of a coil is a measure of:

### Answer:

### Explanation:

Self-inductance measures how much a coil resists a change in the current flowing through it.

## 14. In AC circuits, inductors:

### Answer:

### Explanation:

Inductors offer higher impedance to lower frequencies in AC circuits, effectively blocking them.

## 15. The reactance of an inductor increases with:

### Answer:

### Explanation:

Inductive reactance (XL) is given by XL = 2πfL. As frequency (f) increases, the reactance increases.