NEET Exam > NEET Videos > Physics Class 12 > Inductance & Self-Inductance
Inductance & Self-Inductance Video Lecture | Physics Class 12 - NEET
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FAQs on Inductance & Self-Inductance Video Lecture - Physics Class 12 - NEET
| 1. What is inductance and how does it relate to self-inductance? |  |
Ans. Inductance is the property of an electrical circuit that opposes any change in the flow of current. It is measured in henries (H). Self-inductance, on the other hand, is a type of inductance that occurs in a single coil or conductor. It is the ability of a coil to induce a voltage in itself when the current through it changes. So, self-inductance is a specific form of inductance.
| 2. How is inductance calculated in a circuit? | |
Ans. The inductance in a circuit can be calculated using the formula L = (N^2 * μ₀ * A) / l, where L is the inductance in henries, N is the number of turns in the coil, μ₀ is the permeability of free space, A is the cross-sectional area of the coil, and l is the length of the coil.
| 3. What are some common applications of inductance and self-inductance? | |
Ans. Inductance and self-inductance have various practical applications. Some common examples include transformers, inductors in electronic circuits, electric motors, generators, and inductive heating systems. Inductors and self-inductance are also utilized in power supplies, filters, and energy storage devices.
| 4. How does inductance affect the behavior of an electrical circuit? | |
Ans. Inductance affects the behavior of an electrical circuit in several ways. Firstly, it opposes changes in the current flowing through a circuit, causing a delay in the response to changes in voltage. This effect is known as inductive reactance. Secondly, inductance can store energy in its magnetic field, which can be released when the current through the inductor changes. This property enables inductors to smooth out the current flow in a circuit.
| 5. Can inductance be completely eliminated in a circuit? | |
Ans. In theory, it is not possible to completely eliminate inductance in a circuit. However, by using certain techniques and components, the effects of inductance can be minimized. For example, minimizing the length and area of loops in a circuit can reduce inductance. Additionally, using shielding and magnetic materials can help reduce the coupling of magnetic fields between different components, thereby reducing the impact of inductance.
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Nov 22, 2024 Last updated |
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